Thermodynamics And Thermometers Nagpayong High School Essay

510 words - 3 pages

General Chemistry II
Section: _____________ Score:______________
Date: _____________ (Wag mo ako lokohin! Wala ka nun. HAHAHAHAH)
Problem Set #1
1. A piece of an unknown metal weighs 550. g and requires 9.315 kJ of energy to increase its temperature from 22.0 °C to 65.2 °C. What is the specific heat capacity of the metal?
2. What is the final temperature of a 275 kg sample of water, initially at 19.5 °C, if 36.5 kJ of heat were added to it? The specific heat capacity of water is 4.18 J/g°C.
3. A 45.0 g piece of aluminum, which is initially at 19.5 °C, is placed in 180.0 g of water, which is initially at 95.1 °C. What is the final temperature of the mixture once the aluminum and water reach thermal equilibrium? The specific heat capacity of water is 4.18 J/g°C and that of aluminum is 0.24 J/g°C.
4. If a reaction produces 1.506 kJ of heat, which is contained in 30.0 g of water that is initially at 26.5 °C, what is the resulting temperature of the water? The specific heat capacity of the water is 4.18 J/g°C.
5. When 1.025 g of naphthalene, C10H8, burns in a bomb calorimeter, the temperature rises from 24.25 °C to 32.33 °C. Find the enthalpy of combustion of naphthalene. The heat capacity of the calorimeter was determined to be 5.11 kJ/°C.
6. Zinc metal reacts with hydrochloric acid according to the balanced equation: Zn(s) + 2 HCl(aq) → ZnCl2(aq) + H2(g) When 0.110 g of Zn(s) is combined with 50.0 mL HCl solution in a coffee cup calorimeter, the temperature of the solution increased from 22.5 °C to 23.8 °C. Assuming an excess of HCl(aq), find the enthalpy of the reaction. The density of the solution is 1.03 g/mL and its specific heat capacity is 4.18 J/g°C.
7. When 0.740 g of trinitrotoluene (TNT), C7H5N2O6, is burned in a bomb calorimeter, the temperature increases from 23.4 °C to 26.9 °C. The heat capacity of the calorimeter is 534 J/°C, and it contains 675 g of water. What is the enthalpy of combustion of TNT?
8. When 50.0 g of 0.200 M NaCl(aq) is added to 100.0 g of 0.200 M AgNO3(aq), both initially at 24.1 °C, in a calorimeter, the temperature increases to 25.2 °C as AgCl(s) forms according to the chemical equation below. If the specific heat of the solution and products is 4.10 J/g°C, calculate the enthalpy of the reaction (∆Hrxn). (The density of the solution is 1.00 g/mL.) NaCl(aq) + AgNO3(aq) → AgCl(s) + NaNO3(aq)
9. The addition of 3.15 g of Ba(OH)2⋅8H2O to a solution of 1.52 g of NH4SCN in 1.00 kg of water in a calorimeter caused the temperature of the solution to fall by 30.1 °C. Assume the mass of the reactants and products is negligible compared to the mass of the water and that the specific heat of the solution is 4.20 J/g°C. Calculate the enthalpy of the reaction in kJ/mol: Ba(OH)2⋅8H2O(s) + 2 NH4SCN(aq) → Ba(SCN)2(aq) + 2 NH3(aq) + 10 H2O(l)


Compare and contrast Essay on High School v. Community College

595 words - 3 pages De Nobrega 1 Zachary DeNobrega Professor Bush ENGLISH 1301 10 December 2018 High School v. Community College High School and College are often argued over when trying to decide which is better. Though the level of freedom and difficulty in curriculum differ from each other, both share similarities such as the responsibility and accountability for your mistakes, and the goal to prepare you for the future. The subtle differences between the two

Intellectual Disorders and Autusim - lakeland Union High School - Essay

483 words - 2 pages Mary Sweet LP 13 Overview of Mental Disorders May 3, 2018 Alcohol is the most commonly used substance during adolescence, with a third of high school seniors having ever tried alcohol and almost a fifth of al twelfth graders having had 5 or more drinks on one occasion during the past two weeks. (Johnston, O’Malley, Miech, Bachman, & Schulenberg, 2015) A potential risk factor for alcohol problems in childhood ADHD. ADHS is a developmental

College and High School Student Essay

522 words - 3 pages College graduate I think there are many differences between high school and college graduate. For instance, college students tend to focus on their major of study and high school student does need to select a major; College students are more mature and independent while high schoole students are more playful and depending on their parents; Most college students are working and most high school students are unemployed and they

End Gun violence for any school and everywhere - Blackville hilda high school - Essay

1142 words - 5 pages Quincy Stroman 1/8/18 English 4 Essay Outline A. Introduction B. Telling about how kids growing up C. Seeing violence all your life D. How to help kids and to motivate E. Conclusion. Life of and young african american and gun violence You can find gun violence anywhere around america. I believe once your 18 you should be legal to carry a weapon. Some young kids are shown guns before they are 18. If you are old enough to go to county jail at 18

Yoga and Mental and Emotional Affect on High School Students - University of Manitoba- PERS 2200 - Essay

2010 words - 9 pages Running head: LITERATURE REVIEW 1 LITERATURE REVIEW 7 Literature Review: Yoga and Mental and Emotional Affect on High School Students Introduction Yoga is a holistic mind-body system that was designed as a practice to achieve optimal physical, mental and emotional, while at the same time, unite states of consciousness (Butzer, van Over, Noggle & Khalsa, 2015). Yoga’s ultimate goal is to unify “the self at physical, emotional, cognitive

Compare contrast essay about global warming and it's affect on society - Hershey High School - Essay

1081 words - 5 pages Free of age as the legal limit to consume alcohol? And if it did change, how would it affect the high school and college students in our generation? This would indeed raise many questions as the public would hold many viewpoints on the whole situation. On the other hand, exploring how many minors have already began to drink illegally and consume alcohol due to the pressures of “fitting in” or “being cool” can raise many different answers to how the

An essay on love and the concept of love - Havelock High School English 3 - essay

1119 words - 5 pages his creations the more love you will feel for not only him but those around you. That’s my personal opinion on love. One can start to generate love by first doing good to others, and actually being sincere about it. When you think good of another person, you are in the same wavelength as your inner soul, which makes you feel light and joyful. It can be easy to love one another, but for others it can take time to understand and then develop liking of that person, which will soon lead to loving that person.I will conclude my essay on love with this. Love is a priceless diamond it has many reflections, meaning that every reflection has its own unique aspect.

The signs essay compared to the black cat - the ponds high school and class 10 - essay

1450 words - 6 pages English Essay (the signs and the black cat) Texts which scrutinize aspects of ‘the Unknown’ use a variety of techniques and camera shots to destabilise the audience. The texts ‘Signs’ directed by M. Night Shyamalan and ‘The Black Cat’ written by gothic writer Edgar Allan Poe both fall under the division of science fiction thriller genre which shows the unsettling nature of both texts. The film signs create a sense of suspense and tension by

history and facts about the Louvre museum - fundy high school - essay

1023 words - 5 pages Social Networking in School In today’s society, social networking has become an extremely popular thing. Billions of people are accessing it daily around the world. Why wouldn’t they be? Everything seems to go back to it especially with the younger generations, specifically high school/ college students. However, when everything leads back to social networking it makes many things much more difficult when social networking sites are banned at a

The First Amendment: From Start to Finish - high school and literature - Essay

3873 words - 16 pages the 1st amendment. 91 % of high school students believe that anybody should be able to express unpopular opinions on social media according to a study done by a University of Connecticut professor, Ken Dautrich.[footnoteRef:9] He surveyed 12,090 high school students and 900 teachers. He states “There is a clear, positive relationship between student usage of social media to get news and information and greater support for free expression of

shsm worksheet that will help outline and help you - high school major - high school major

890 words - 4 pages Loretto Abbey's SHSM Program – NON-PROFIT Sector Student Registration Form for the 2018-2019 Academic Year Thank you for your interest in enroling in Loretto Abbey’s Non-Profit Specialist High Skills Major (SHSM) Program. You will gain valuable knowledge and participate in enriching experiences in grades 11 and 12! A Summary of the SHSM Program PROGRAM REQUIREMENTS: • A specific BUNDLE* of 9 CREDITS some of which include Contextualized Learning

Edward scissor hands essay-film shots and key messages. - Burnside High School. English class by mrs Hubbard - Essay

1694 words - 7 pages to look directly into the action. Low angle - makes the subject look powerful (and sometimes evil). High angle - makes the subject look weak and/or gives the impression of height. Tracking shot - Camera moving along with the character to create tension POV shot (point of view shot) - to put yourself in their shoes (usually very stinky) Sehyun’s Essay In the film Edward Scissorhands, Tim Burton the director, shows us how strong the power of

Bipolar disorder and It's Affects - Moorestown High School - research paper

3622 words - 15 pages Free relationships, poor job or school performance, and even suicide. But bipolar disorder can be treated, and people with this illness can lead full and productive lives. Bipolar disorder often appears in the late teens or early adult years. At least half of all cases start before age 25. Some people have their first symptoms during childhood, while others may develop symptoms late in life. Bipolar disorder is not easy to spot when it starts. Some people

Life And Journey From High School - high school - essay

2463 words - 10 pages and innovative individual with sophisticated business skills, possessing high personal integrity and having the ability to create trust. I am highly articulate, confident and a persuasive team builder. My ability to motivate and communicate effectively influences exceptional business performance. I am dependable and reliable in supporting and enabling team efforts to produce genuine, long term sustainable development. My career aspirations I see

high school should make uniform mandatory - Grade 12 assignment - Essay

479 words - 2 pages Free High schools should enforce making uniforms mandatory to develop student improvement, represents school in an exceptional way and prepares students for the work world. Uniforms should be compulsory because they intend to lead students to become the improved version of themselves. Firstly, uniforms create a sense of equality and prevents students to feel left out or underprivileged. The rich students would wear experience expensive clothes to