Saturday, October 5, 2019

Chauncy and Gay Male Culture, 1890-1940 (responses) Assignment

Chauncy and Gay Male Culture, 1890-1940 (responses) - Assignment Example I feel the response is correct in its assessment of gay male culture through the questions answered. The second response correctly identifies the three myths that Chauncey aims at dismantling. The response is however not very well detailed when it comes to assessing the questions raised. The author identifies the reasons for gay closure on a narrower perspective. The author should provide a wider perspective of the reasons gays remained closeted at certain points in history. The author provides his answers to the question as to why gay men got forced underground by simply quoting Chauncey. The author should elaborate on Chauncey’s reason a bit further. The response also has a few grammar mistakes in regards to the use of tenses and sentence structure which require ironing out. I feel the author in the second response has valid answers to the questions posed but needs to structure his sentences for his or her answers to come out more

Friday, October 4, 2019

Treatments for Type 1 Diabetes Mellitus Research Paper

Treatments for Type 1 Diabetes Mellitus - Research Paper Example Since its earliest explanation many of years ago, diabetes has remained a chronic progressive illness (Rubino et al. 1). The illness now affects over 200 million individuals globally, and diabetes-associated death is anticipated to go up by 50% in the next decade. The occurrence of the disease, from 1994 to 2004, among elderly individuals, went up by 63% (Rubino et al. 1). Diabetes is, at the moment, ranked as the 6th leading cause of death in the United States (Rubino et al. 1). In many other nations, it ranks far higher due to their extremely poor techniques of dealing with the illness. In the United States Prospective Diabetes Study, people with diabetes were treated with insulin, diet modification, sulfonylurea and metformin in order to ease the illness (Sloan 194). Even with the innovative pharmacotherapies (drug therapies), diabetic patients still develop micro- and macro-vascular effects. Diabetes is associated with increased stroke- and cardiac-related deaths, blindness and k idney failure, as well as 69% of the non-trauma lower-limb amputations (Sloan 194). The illness as a preoperative risk element confers much better morbidity than a previous myocardial infarction in cardiac surgery. Whereas this numbers indicate to us that this disease will be a global health concern of the next generation, its actual pathophysiology is yet to be defined. Alternative treatments targeting diverse models of this disease need vigilant and responsible assessment. A tremendous body of proof now showcases that surgery for type 1 diabetes can achieve complete illness remission, an objective almost unprecedented in recent diabetes care (Perry 22; Montenero 98; Fox 1550). Data gathered over many years of surgery showcases the success and durability of diabetes management gained after the surgery. Metabolic surgery is, at the moment, emerging as a field devoted to the development of surgical processes, particularly intended to treat diabetes. However, what about non-surgical treatment? Type 1 is treated non-surgically with insulin replacement – normally through an insulin pump or insulin injection, along with dietary management, usually including vigilant monitoring of blood glucos e levels with the use of glucose meters and carbohydrate tracking (Fox 1545). This paper will center on whether one should consider surgical or non-surgical treatment for diabetes. It will discuss the many surgical and non-surgical options currently available, as well as those under study. Evidence In the early 80’s, medical surgeons identified that a lot of patients with type 1 diabetes (T1D) who had undergone pancreas transplant and islet cell transplant for treatment of the disease experienced a complete diabetes remission (Fox 1546). This remission confirmed to be durable. Since then, numerous studies have come up confirming the efficiency of pancreas transplant and islet cell transplant in treating T1D. In the meta-analysis of 30,000 diabetic patients, Cremieux (590) found diabetes resolution in 97.6 percent of patients experiencing biliopancreatic change or duodenal exchange, 84.9 percent resolution after islet cell transplant, as well as 47.9 percent diet management. I n an American diabetes study, a probable case-matched study compared diabetic patients undergoing surgery (pancreas or islet cell) with medication or non-surgical procedures (Rubino et al. 1). The data was gathered from 4,000 diabetic patients, who were tracked for over two years and others tracked for over a decade. The occurrence of diabetes at two and 10 years was overwhelmingly lower in the group that underwent surgery compared to the individuals who went for conventional treatment (Rubino et al. 1). Diabetes reduction rates as two and 10 years were 80 percent and 30 percent respectively following surgery and 20 percent and 11 percent with medical therapy respectively. A lot of people have argued that the decade remission rate is much lower than expected due to the high percentage rate of

Thursday, October 3, 2019

Generation Gap Essay Example for Free

Generation Gap Essay Do you know what a generation gap is? Even if you dont know the particular definition, you are aware of this problem, basing on your own experience. Generation gap is a popular term used to describe serious differences between people of two generations. To realize how to deal with it, you should keep in mind that generation gap includes several aspects: children must know as much as possible about their parents and parents — about the world outlook of their children, about relations between brothers and sisters, and also about the attitude to them of close relatives on both sides — fathers and mothers. Children demand a great deal of attention, time and patience, so, if you are not ready to devote all that to your baby, it is better not to hurry There are many families where both parents keep working after giving birth to their baby It is similar to the situation with a single-parent family, when a father or a mother hardly have enough time and neglect their childrens upbringing. In such cases most of the time the child has to spend on his own or with his friends. Due to the fact that he has not got any guidance from his parents he may be involved in some bad companies which commit violence or even crime and become alcohol or drug addicted. When the parents discover that, its usually too late to change anything. On the other hand, there is a different situation when the parents treat their children too strict and dont give them any freedom at all. In this case the children may become pariahs among their peers. Constant bans may increase the risk that the child will grow up insolent and defiant. This causes another big problem — lying. The child is forced to lie to the parents because of the fear to be punished. It can be anything from putting on make-up in the girls room at school to stealing. Some children rebel against discipline and family values. They listen to a loud music, wear inappropriate, to their parents mind, clothes, dye their hair in inconceivable colours, have all their bodies pierced and tattooed trying to show their ind ependence and establish their identity. They want to be treated as adults, but they are not ready to take all the necessary responsibilities. It doesnt mean that your child is bad and he will become a criminal. Of course, not! It only means that your child is in his transitional age and he is in need of your understanding and support. But how to handle such behaviour? Parents should become his close friends. First of all they should learn to respect his interests. Try to speak with him as often as possible, offer some parent-child activities like shopping or going in for sports. It is worth involving the child in discussing some family questions, just to show that he is a full member of the family. Moreover, children in their teens are very vulnerable when they are criticized in public, so try to avoid it. Parents should always be honest and sincere with their child; otherwise it would be unfair to require the same from him. Too authoritarian parents cant do any good to their children as well as parents who overindulge all the childs caprices. Overindulgence may lead to the same results as negligence. There are parents who are afraid of hurting the child by banning something when it is necessary. Such parents risk becoming powerless in the family and losing control over their children who may become spoiled and capricious. It demands to make a great effort from both parents and children to reach mutual understanding. There are many different opinions on the question of treating children if they disobey their parents, but every parent should decide for himself what will be best for his child and set him on the right path.

Shopping online

Shopping online Chapter 1 Introduction 1. Research Background With economics development, more and more customers are shopping online which is not incurable way. The customers can directly go to web site and search some information and purchase products or any services which is basic for e-commerce. Moreover, consumer-purchases are mostly based on information of product how it shows out, such as pictures of product, quality information, delivery time and price etc ( Park Kim 2003, Kolesar and Galbraith 2000). As shopping online cannot tough or smell the products, therefore the web site and sellers reputation are very important which might be affected the consumers purchase making decision (Park Kim 2003, pp.16). As internet has already linked to all of countries, it effectively advances the business development and there is no limited for them. Internet is not only advanced telecommunications, but also appearance of e-commerce has helped advance the environment which promotes the globalisation of markets throughout the world (Aljifri, et al 2003, pp.130). Moreover, e-commerce shows that lots of benefits, for example, expend the information area, development and innovation the new technologies, do some promotion for product sales and other services, and also cooperation between those in a supply chain (Aljifri, et al 2003, pp.130 OECD, 1997). However, as it has grown and become an important tool for some, the most of people are still reluctant in indulging in this recent fact. It is not argued that consumers are not browsing through e-commerce sites altogether, it shows that is increasing however the number of people that actually purchase from these e-commerce sites is low. According to Croner (2000), the biggest barrier to e-commerce growth is nor technology, but peoples attitude towards it. Some consumers are still feeling online shopping is difficult to trust. According to Moseley (2000) e-commerce to be towards a viable market place and people should trust the internet. In the future, e-commerce will be dependant and also develop relationships between website and customers which can increase the creditable from website and more confidence from customers. In a recent survey by Commerce Net, (2000), the top business to consumer barriers identified fro growth of e-commerce worldwide were security and encryption, trust and risk, user authentication and lack of public key infrastructure, and legal issues. Global e-commerce, in its current embryonic state, cannot be overly regulated in order to promote innovation and growth. Yet measures need to be taken to implant trust between all parties in e-commerce. Atif (2002) recently proposed a system that utilizes a network based intermediaries designed to eliminate some of the transactional risks in conducting e-commerce transactions. He proposed the introduction of trust service providers (TSP) to act on behalf of all the parties involved in these transactions. Implementations of such systems will help to promote security within e-commerce transactions. Stories of criminal behavior in the e-commerce arena have created a stereotype for e-commerce that portrays the internet as an area of little governance and no true security. This stereotype has generated the lack of trust in electronic transactions and establishing trust highly depends on user perceptions. The concept of trust in e-commerce has influenced many scholars from many different academic areas, which are elaborated later in the study. Previous research has concentrated on the adoption of e-commerce (Yaholm et al., 1993; Thomas., 1994; Cheskin Research, 1999; Beale, 1999; Periera, 1999; Siyal, 2000) all reveal consumers do not trust the existing security technologies and the general e-commerce set up. Studies also displayed that customers are worried about the delivery of their products ordered via the internet and about fraudulent e-merchants (Cheskin Research, 1999;Beale, 1999). At the same time consumers are becoming more mature, sophisticated and intelligent, are demanding higher levels of product information before making purchasing decisions (Periera, 1999). Further research by Beale (1999) on e-commerce trust revealed that consumers are concerned about the privacy and protection of their personal information (including their credit card numbers, social insurance or security numbers and buying pattern history) when shopping online. Previous research in to e-commerce trust aimed to identify trust, loyalty and likelihood of online purchase as the focal points of the investigation (Swaminathan et al, 1999; Jarvenpaa Tractinsky, 1999; Jungwon et al, 1999). This study will also look into to these issues however at the same time it will attempt to provide further insight in to the factors that influence consumer trust online. This will involve examining the already proposed trust element of online vendors, from a consumer perspective, particularly focusing on the difference in purchasing demands between different ethnic origins. 1.2 Research objectives and questions The study will compare online demand between white (European) and Asians, which is explained in more detail later in the study. The study will aim to provide answers to the following research questions and objectives; Highlight from a psychological, business and consumer behavior papers the principles of trust. Examine the relative importance of trust in e-commerce. Identify and examine factors that determine consumers levels of trust towards the concept of e-commerce. Investigate the concept of online trust under different categories of consumers, i.e. according to education, computer experience, ethnic origin etc. Look in to vendor characteristics and reputation elements to explore how likely they are to inspire trust online. 1.3 Contribution of the study 1.4 Research structure This dissertation will be structured as below, Chapter 2 – Literature review Chapter 3 – Research methodology will be aimed towards an inductive approach, and will involve the following research processes: Review the current theory and research findings on the concept of online trust. Use existing theory and methodology in order to provide a method of investigation. Collect data and investigate in to factors by analyzing and presenting the findings. Use the research findings in order to improve or justify previous studies and provide further conclusions. To acquire the perceptions and attitudes of consumers towards the concept of online trust the research used structured questionnaires. This was achieved through a street survey taking place in Sheffield. The theoretical framework created to investigate the factors and the selected methods of investigation, (i.e. questionnaire design and sampling method) are explained in great depth in chapter three. Chapter two has concentrated on the theoretical background associated to the research subject, looking in to the concept of trust, online trust and factors that influence trust. This chapter also highlights in greater detail the security and privacy issues related to consumers. Chapter 4 – Data analysis and findings will present the findings which have been collected from the data sources, evaluate and discuss the findings in the context of this particular study. Data analysis of the research findings is found in chapter four, with constant reference to aspects related to the aims of the research Chapter 5 – It includes a discussion of the results with relation to research objectives. The findings will identify key elements that online vendors may want to focus upon in order to inspire trust, therefore recommendations are provided in this chapter. It also includes summarized research findings and the research limitations are acknowledged.

Wednesday, October 2, 2019

Internal Conflict: Nature, Humans, and Animals :: Philosophy Essays

Internal Conflict: Nature, Humans, and Animals Caught up in the modern day scheme of things, I haven't felt connected to nature in some time. I always considered myself a lover of nature and the outdoors. But driving west on US 41, as I passed the turnpike and headed into the everglades, I began to think about the last time I had been so removed from the everyday hustle and bustle. I have been having internal conflict as of late, and it seems this trip illuminated some facets of this inner unrest. It has always been easier for me to put my thoughts on paper. This is the attempt of this essay, to externalize this internal conflict. As I do this, I am hoping to better understand myself. One such debate I have with myself is whether human life is to be held above other life, and if such a concept is even possible. The second of my internal conflicts is animal rights. Do or should animals have rights? Finally, and most important, what is my responsibility or place in the grand scheme of things? This includes my decision to be a responsible human being, and whether I should have children or adopt. These ideas, not mutually exclusive, tie together and overlap in a common theme of my current internal thought processes. It seems to be my understanding that western religion or Christianity holds the belief that animals were put here on Earth for us humans. Human beings are held above all else. This is the justification for things like animal research, and the draining of the everglades for human habitation. I personally would put most members of my human family above my pet dog, if it came down to a choice. But my question is, are our lives more valuable than other life in the grand scheme of things? Or are all living things, being in a common ecosystem, interdependent? Finally, what kind of life will there be if we continue our current path of destroying these habitats, our habitat? When I pulled into Coopertown, I noticed I was the first person to arrive. This gave me a chance to look around a little. Coopertown is a tourist trap. It includes a quaint restaurant which offers gator tail and airboat rides, the latter being the reason for our trip. As I walked past the restaurant and toward the dock where the airboats depart, I came to a hut with a counter where you inquire about the airboat rides.

Tuesday, October 1, 2019

SUV’s - Harmful to the Environment and Hazardous to their Owners Healt

SUV’s - Harmful to the Environment and Hazardous to their Owners' Health   Ã‚  Ã‚  Ã‚  Ã‚  Sport utility vehicles, better known as SUV’s, propose a hazard to other drivers on the road as well as their occupants. In addition to being unsafe they are also harmful to the environment. In the past six years SUV’s have become the most popular vehicle on the roads in America and today they account for nearly fifty percent of all new vehicle sales. The annual sales of SUV’s are currently on the rise as lower gas prices sweep across the nation. The combination of the SUV’s hazardous nature and their rising sales makes for a very dangerous situation. Sport Utility Vehicles are harmful to the environment, hazardous to those occupying them, and create a hazard to other drivers on the road.   Ã‚  Ã‚  Ã‚  Ã‚  SUV’s are engineered from the same platforms that are used to create trucks and most of the time they share the same engine and components. Instead of having a bed like a truck, which is very light, they have an enclosed area for more seats or a cargo compartment, which is very heavy. The added weight forces the engine to combust more gas in order to be able to provide adequate power to move the added weight. This is the reason that SUV’s get worse gas mileage than their truck counterparts. Even an SUV that comes with a small engine will get bad gas mileage because it has to struggle and keep the RPM’s high in order to move the vehicle. Higher RPM’s equals more gas consumption. The emissions that SUV’s put...

Thermochemistry Laboratory Report Essay

Abstract The purposes of these three experiments are to determine the heat capacity of a calorimeter and with that data, confirm Hess’s Law and observe enthalpy changes within reactions. By measuring the change in temperature that occurs with the interaction of two different reactants, we were able to determine both the calorimeter constant and the change in enthalpy of a given reaction. The results were rather mixed, as some numbers more closely resembled the theoretical values than others did. Introduction The first experiment is devoted to finding the calorimeter constant for a polystyrene cup. Whenever a reaction takes place inside a calorimeter, some heat is lost to the calorimeter and its surroundings. In order to achieve maximum accuracy, we must know exactly how much heat will be lost, so that the results of the next two experiments will be as correct as possible. The equation used to determine it is a simple manipulation of the overall heat of the reaction equation, which is: Overall Heat = – [(Sp.Ht. hotwater * Mass of water * Change in temperature) + (Sp.Ht. coolwater * Mass of water * Change in temperature) + (Cp calorimeter * Change in temperature)] Since an error is bound to happen during the experimental process, three calculations were done to find an average. This experiment is vital to the success of the following two thermochemistry experiments. The second experiment, entitled Hess’s Law, is a simple confirmation of said law. To do so, we take three reactions, where one of them is the same as the other two, and measure the heats of reaction for each of them. Hess’s Law states that the heat of reaction of the one reaction should equal to the sum of the heats of reaction for the other two. The three reactions used in this experiment are: (1) NaOH(s) ïÆ'   Na+(aq) + OH-(aq) (2) NaOH(s) + H+(aq) + Cl-(aq) ïÆ'   H2O(l) + Na+(aq) + Cl-(aq) (3) Na+(aq) + OH-(aq) + H+(aq) + Cl-(aq) ïÆ'   H2O(l) + Na+(aq) + Cl-(aq) In order to find the heat released by each reaction, we used a variant of the overall heat of a reaction equation, which was q = – [Sp.Ht. * m * Change in temp.]. In  addition to finding the change in enthalpy, change in entropy was also calculated using theoretical values in given reference tables. Finally, the overall free energy released was calculated using the equation: Change in free energy = Change in enthalpy – (Temperature * Change in entropy). All of this is then used to verify Hess’s Law by calculating the percent error involved in the experiment. The third experiment, called Thermochemistry: Acid + Base, combines the concepts of the previous two experiments. The main concept is to observe the change in enthalpy that results from the various reactions between strong and weak acids and bases. There were four reactions used in this experiment, and they are: (1) HCl(aq) + NaOH(aq) ïÆ'   NaCl(aq) + H2O(l) (2) HCl(aq) +NH3(aq) ïÆ'   NH4Cl(aq) (3) HC2H3O2(aq) + NaOH(aq) ïÆ'   NaC2H3O2(aq) + H2O(l) (4) HC2H3O2(aq) + NH3(aq) ïÆ'   NH4C2H3O2(aq) By monitoring the change in temperature that results from the reaction of an acid and a base, it is possible to calculate the overall energy for each reaction, also known as ∆H rxn/mole of limiting reactant. This experimental value can be compared with the theoretical to determine how accurate the experiment was. The lower the percent error, the more accurate we were at calculating the energy involved in each reaction. Experimental In order to do any calculation for energy, we first had to find the calorimeter constant. In order to do that, we first took and weighed a polystyrene cup (our calorimeter) and added approximately 100 g of warm water to it. The actual measurements are recorded in Table 1-1. The mass of the cup with the water in it were recorded to find the exact mass of the water added. Next, a cylinder was weighed, like the cup, and about 48 mL of cool water was added. The total was weighed and recorded in the same table. Afterwards, temperature sensors connected through a LabPro device were suspended in the two containers and the calculator’s DataMate program was used to record temperature over a 90 second time interval. After a few seconds of data collection from the separate liquids, they were mixed  together and stirred with the sensors until there was no time left. By using Graphical Analysis, a graph of the data was printed, displaying temperature vs. time. Tangent lines were drawn on the graph in order to determine the initial and final temperatures of the two liquids. The above procedure was repeated two more times for the sake of precision. Finally, we calculated the calorimeter constant using the formula listed in the Introduction section. Even though we conducted an experiment to find the heat capacity of a calorimeter, we were given a new value for the constant for experiment 2, due to inaccuracy in our results. For the lab called Hess’s Law, we first started by setting up the calculator to collect temperature data again. The procedure is the same as the one used in the last experiment, except that the time interval is set to 4 minutes. Next, we obtain a polystyrene cup to use as our calorimeter and fill it with 100 g of water. The cup is placed within a 250-mL beaker to keep it in a sustained environment. A temperature sensor is placed in the water and is stabilized. Then, we obtained solid NaOH and weighed about 2 grams to the nearest thousandth decimal point. This value is recorded, along with all other data in Table 2-1. Afterwards, data collection begins and after about 15 seconds, the NaOH is added to the water. The resulting solution is stirred for the duration of the time interval and by using Graphica l Analysis a graph is produced. This procedure is repeated twice more for 0.5 M HCl in place of water for one trial, and then 1.0 M HCl and 1.0 M NaOH solution for the third trial. All of the measurements are recorded in the table mentioned above. For the final experiment, the procedure is very similar to its predecessors. We began by initializing the LabPro and DataMate to collect temperature data over time (this time it is a 180 second interval). First, we measure as close as we can to 50 g of a base of our choice in a 100-mL graduated cylinder. A temperature sensor is placed in the cylinder. Next, we weighed 100 g of a chosen acid in the calorimeter. The calorimeter is placed in a 1000-mL beaker for stability and a temperature sensor is submerged in the acid. After the sensors have a chance to equilibrate, we started to collect data. When about 15 seconds have passed, we poured the base into the  calorimeter with the acid and stirred for the duration of the time with both sensors. Then, when time was up, we used Graphical Analysis to print the resulting temperature vs. time graph. This processed is repeated three more times until every combination of strong and weak acids and bases is used. Analysis The data we recorded for the first experiment appears to be accurate, though drawing tangent lines to find final and initial points has its inherent inaccuracy. Using the formula discussed in the introduction, our equation turned out like the following: 0 = – [(47.166 g * 4.184 J/g °C * 16.561  °C) + (98.874 g * 4.184 J/g °C * -9.4139  °C) + (Cp calorimeter * -9.4139  °C)] Cp calorimeter = -66.522 J/ °C The average of the three obtained values is as simple as adding them all together and dividing by three, the number of values, which looked like this: (-66.522 + 348.619 + 225.669)/3 = 169.255 J/ °C. This number is much higher than the default value we were given for the next lab, which was only 15.0 J/ °C. For the Hess’s Law experiment, the numbers looked much better. The first thing we did with the data was solve for the change in temperature, which was just final temperature minus initial temperature. The result gave us something like this: 23.9  °C – 19  °C = 4.9  °C. Second, we calculated the heat released by each equation, which is shown as this: q = – [Sp.Ht. * m * ∆t] q = – [4.18 J/g °C * 99.524 g * 4.9  °C] q = -2.038 kJ Then, the heat lost to the calorimeter was calculated using the formula q = – [Cp * ∆t]. From that, we found that q = – [15.0 J/ °C * 4.9  °C] = -0.0735 kJ. Next, the total ∆H was found by adding both values of q above, which just equals -2.1115 kJ. In order to find ∆H/mol NaOH, we had to find how many moles were used in each reaction based on the mass of NaOH weighed and recorded in Table 2-1. The format for finding the number of moles looked  like the following: 2.0810 g NaOH * (1 mol NaOH / 40 g NaOH) = 0.052 mol NaOH. This value is used to divide the ∆H to find the ∆H/mol NaOH value, which equaled -40.606 kJ/mol. Using the ∆H of Reaction 2 as the theoretical value, and the combined ∆H values of Reactions 1 and 3, we can find out our percent error, which is shown below as: % error = abs ((theoretical – experimental) / theoretical) * 100 % error = abs ((79.56 – 94.87) / 79.56) * 100 % error = 19.24 % The above values can all be found on Table 2-1. The above process was repeated with data collected from the whole class, which yielded a 14.47 % error. Finally, using theoretical numbers, we calculated ∆H, ∆S, and ∆G for reaction 2. For the first two, a similar equation of sum of products minus sum of reactants equals ∆H and ∆S respectively. ∆G is calculated using the formula in the introduction, which looked like ∆G = -98.8 – 298(0.0580) = -116.062 kJ/mol. With the data collected in the third experiment a multitude of calculations were carried out. All of the following data can be found in Table 3-1. First, we solved for ∆H rxn, which is the same as the overall heat equation described in the introduction. The calculation looked liked the following: ∆H rxn = – [(4.184 J/g °C * 98.781 g * 4.35  °C) + (4.184 J/g °C * 48.5133 g * 4.0  °C) + (15.0 J/ °C * 4.35  °C) ∆H rxn = -2.68 kJ Next, we needed to calculate the limiting reactant for each reaction, which was just the reactant that yielded the least product. The method for determining it is like so: 98.781 g HCl * (1 mol HCl / 36 g HCl) * (1 mol NaCl / 1 mol HCl) * (1 g NaCl / 1 mol NaCl) = 2.744 g NaCl 48.5153 g NaOH * (1 mol NaOH / 40 g NaOH) * (1mol NaCl / 1 mol NaOH) * (1 g NaCl / 1 mol NaCl) = 1.213 g NaCl Then, we take the ∆H rxn above and divide it by the moles of limiting reactant, which we discovered above (since each solution is 1.0 M, the moles used is the number of grams divided by 1000). This new ∆H rxn / moles of limiting reactant is the experimental value to be compared to the theoretical value obtained with given numbers. Comparing these two values using the % error equation above, the % error of one of the reactions comes out to be just 1.25%. The rest of the numbers can be observed in Table 3-2. This concludes all of the calculations that were involved in all of the experiments. Conclusion The results of this experiment were a mix of both very accurate and nowhere close. For the first experiment, the values for the calorimeter constant were very imprecise, ranging from negative values to ten times greater than the theoretical 15.0 J/ °C. This is most likely due to a series of miscalculations and human error. In experiment two, the numbers were far more favorable, with a 19.24 % error for our data and a 14.47 % error for the entire class. This number still seems too high to justify the verification of Hess’s Law and should probably be redone with more care in consistently measuring reactants, but other than that, the experiment was completed well enough. The results for the final experiment are also quite mixed. While some experimental values had only a 1.25 % error, others were grossly erroneous with about 65.1 % error. The most inaccurate data was the ones collected for the reaction of a weak acid and a strong base, which yielded an obviously flawed 300 % err or. For the results that were inaccurate, the source of error was most likely to due a miscalculation on my part, possibly in the calculation of the theoretical values, or the experimental for that matter. Much more care must be taken when repeating this lab, for the possible errors are numerous. The purpose of these three labs were to observe the nature of heat and reactions, which the experiments do rather nicely. The procedures described do an excellent job describing the purpose of each step, though they are easy to do incorrectly. In the end, the experiments yielded mediocre results, a mixed bag of incredibly accurate to just very wrong. Thermochemistry is indeed a rather elusive topic, but these experiments make it much more tangible.