Post a question
Help
Contact Us
FAQ
Homework Answers
Login
Not a Member? Sign up!
Post a question
Help
Contact Us
FAQ
Homework Answers
Login
Not a Member? Sign up!
guru answers (Not rated)4.5 (1k+)ChatThermochemistry
Main
Similar Questions
Home
Chemistry homework help
Report Issue
Chemistry Final Exam Version 12/2016
Name:
Student number:
Directions: It is important that you provide answers in your own words. Please focus only on information from the text/eBook to create your own solutions. Please do not use direct information from an outside source (especially copying and pasting from an “answer” website). Use of direct information from an outside source is against school policy. All answers will be checked for plagiarism. Instances of plagiarism can result in probation or possible dismissal from the school.
Please be sure to follow all guidelines (number of sentences/showing all calculations) and to provide the correct metric units of measure. All questions are 3.33 points each (.33 for unit)
A student collected the following data for a fixed volume of gas:
Temperature (⁰C)
Pressure (mm of Hg)
10
726
20
750
40
800
70
880
100
960
150
???
Fill in the missing data point. Show all calculations leading to an answer.
You are given a clear solution of KNO3. Using 3 – 4 sentences (in your own words) explain how you would determine if the solution is unsaturated, saturated or supersaturated.
Explain why gasoline will not dissolve in water.
Explain in 3 – 4 sentences (in your own words) how perspiration helps keep you cool on a hot day.
You have two sealed jars of water at the same temperature. In the first jar there is a large amount of water. In the second jar there is a small amount of water. Using 3 -4 sentences explain how the vapor pressure of water in the first jar compares with the vapor pressure of water in the second jar.
Using 3 – 4 sentences explain (in your own words) why water expands when it freezes?
Using your knowledge of colligative properties explain whether sodium chloride or calcium chloride would be a more effective substance to melt the ice on a slick sidewalk. Use 3 – 4 sentences in your explanation.
When a 2.5 mol of sugar (C12H22O11) are added to a certain amount of water the boiling point is raised by 1 Celsius degree. If 2.5 mol of aluminum nitrate is added to the same amount of water, by how much will the boiling point be changed? Show all calculations leading to your answer OR use 3 – 4 sentences to explain your answer.
If 5.40 kcal of heat is added to 1.00 kg of water at 100⁰C, how much steam at 100⁰C is produced? Show all calculations leading to an answer.
The freezing of water at 0⁰C can be represented as follows:
H2O (l) H2O(s)
The density of liquid water is 1.00 g/cm3. The density of ice is 0.92 g/cm3. In 3 – 4 sentences explain why applying pressure causes ice to melt.
The Kw of water varies with temperature. Calculate the pH of water at 46⁰C with a Kw = 1.219 x 10-14. Show all calculations leading to an answer.
Calculate the hydroxide ion concentration of a solution with pH = 3.25. Show all calculations leading to an answer.
What salt results from the neutralization of phosphoric acid with potassium hydroxide?
What is the oxidation number of chlorine in Al(ClO4)3?
Which element is oxidized in the following reaction:
CuO(s) + H2 (g) → Cu(s) + H2O (l)
Why must the number of electrons lost equal the number of electrons gained in every redox reaction? Use 3 – 4 sentences in your own words to address this question.
The following unbalanced equation describes the reaction that can occur when lead (II) sulfide reacts with oxygen gas to produce lead (II) oxide and sulfur dioxide gas:
PbS + O2 → PbO + SO2
Balance the equation and describe in words the electron transfer(s) that takes place.
What type of radiation is emitted when chromium-51 decays into manganese-51? Show the nuclear equation that leads you to this answer.
A radioactive nucleus alpha decays to yield a sodium-24 nucleus in 14.8 hours. What was the identity of the original nucleus? Show the nuclear equation that leads you to this answer.
Iron-59 has a half-life of 45.1 days. How old is an iron nail if the Fe-59 content is 25% that of a new sample of iron? Show all calculations leading to a solution.
Using at least 3 to 4 complete content related sentences, explain how the compressed gas in an aerosol can forces paint out of the can. Be sure to describe how the gas pressure inside the can changes as the paint is sprayed. Please refer to figure 14.5 in lesson 14.1.
pH is a measure of ______________.
hydrogen ion concentration. c. hydroxide ion concentration.
hydrogen gas concentration. d. hydrolysis.
A neutralization reaction between an acid and a base always produces
salt and acidic anhydride. c. water and basic anhydride.
salt and basic anhydride. d. salt and water.
If the pH of a solution is _____ the solution is basic.
a. 2 b. 5 c. 7 d. 10
25 – 30 Apply the appropriate word to the definition indicated. Not all words will be used.
25. _____
Heat content of a system at constant pressure
calorie (cal)
26. _____
Ability to do work
Chemical Potential Energy
27. _____
Disorder
Energy
28. _____
Energy of motion
Enthalpy
29. _____
Study of energy changes that ocrrue during chemic reaction and changes in states.
Entropy
30. _____
Amount of heat required to raise T of 1 g of pure water 1◦C
Joule
Kinetic energy
Heat (q)
Specific Heat
Thermochemistry
Posted: a year ago
Thermochemistry
Purchase the answer to view it
ChemistryFinalExam_.docx
Buy tutorial $20Save time and money!Our teachers already did such homework, use it as a reference!
Rated 2 timesChemistry Final
Directions: It is important that you provide answers in your own words. Please focus only on information from the text/eBook to create your own solutions. Please do not use direct …
Rated 1 timesChemistry !!!
Not rateddue 9/26 at 2:00 pm
Chemistry Final Exam…
Blog ArchiveCopyright © 2019 HomeworkMarket.com Read More
Applied Sciences
Architecture and Design
Biology
Business & Finance
Chemistry
Computer Science
Geography
Geology
Education
Engineering
English
Environmental science
Spanish
Government
History
Human Resource Management
Information Systems
Law
Literature
Mathematics
Nursing
Physics
Political Science
Psychology
Reading
Science
Social Science
“Looking for a Similar Assignment? Get Expert Help at an Amazing Discount!”
What Students Are Saying About Us
.......... Customer ID: 12*** | Rating: ⭐⭐⭐⭐⭐"Honestly, I was afraid to send my paper to you, but splendidwritings.com proved they are a trustworthy service. My essay was done in less than a day, and I received a brilliant piece. I didn’t even believe it was my essay at first 🙂 Great job, thank you!"
.......... Customer ID: 14***| Rating: ⭐⭐⭐⭐⭐
"The company has some nice prices and good content. I ordered a term paper here and got a very good one. I'll keep ordering from this website."
