CHEM 101 Final Exam Real Exam Questions and Answers (Verified Answers) Already Graded A+
6 views 0 purchase
Course
CHEM 101
Institution
CHEM 101
CHEM 101 Final Exam Real Exam Questions and Answers (Verified Answers) Already Graded A+
Which one of the following best describes Charles's Law?
A) The volume of a gas is directly proportional to the temperature of the gas.
B) The pressure of a gas is directly proportional to the temperature of...
CHEM 101 Final Exam Real Exam
Questions and Answers (Verified
Answers) Already Graded A+
Which one of the following best describes Charles's Law?
A) The volume of a gas is directly proportional to the temperature of the gas.
B) The pressure of a gas is directly proportional to the temperature of the gas.
C) The volume of a gas is directly proportional to the moles of a gas.
D) The pressure of a gas is inversely proportional to the volume of a gas. - Answer ✅
A) The volume of a gas us directly proportional to the temperature of the gas.
A weather balloon calibrated at 0.00 degrees C to have a volume of 20.0 L has what
volume at -40.0 degrees C assuming pressure is held constant? - Answer ✅ 17.1 L
You have a two-liter sample of each of the following gases, at all 25 degrees C and one
atmosphere pressure. Which sample will weigh the most?
A) Ammonia
B) Argon
C) Carbon dioxide
D) Nitrogen dioxide
E) Oxygen - Answer ✅ D) Nitrogen dioxide
A mixture of two gases with a total pressure of 2.00 atm contains 0.70 atm of Gas A.
What is the partial pressure of Gas B? - Answer ✅ 1.30 atm
What is the molar mass of an unknown gas with a density of 2.00 g/L at 1.00 atm and
25.0 degrees C? - Answer ✅ 48.9 g/mol
How many grams of sodium are required to completely react with 19.2 L of Cl2 gas at
STP according to the following chemical reaction? Remember 1 mol of an ideal gas has
a volume of 22.4 L at STP
2 Na (s) + Cl2(g) > 2 Na Cl(s) - Answer ✅ 39.4 g Na
What is the difference between effusion and diffusion? - Answer ✅ Effusion is through a
pinhole, and diffusion is through open space.
An exothermic reaction causes the surroundings to - Answer ✅ Warm up
Which one of the following processes is endothermic? - Answer ✅ Boiling a liquid
, Which one of the following processes is exothermic? - Answer ✅ Condensation of a
gas into a liquid
Work is best described as - Answer ✅ The displacement of an object against a force
How many calories are in 5401 J? (1 cal = 4.18 J) - Answer ✅ 1290 cal
How many Joules are there in 2001 calories? (1 cal = 4.18 J) - Answer ✅ 8377 J
In which one of the following processes is the system endothermic? - Answer ✅ A
process taking place in solution where the solution temperature decreases.
When molecules absorb heat, there is an increase in - Answer ✅ The kinetic energy of
the molecules
Which of the following has the greatest amount of potential energy? - Answer ✅ A ball
at the top of a hill
Which of the following represents an example of kinetic energy? - Answer ✅ A ball
rolling down a hill
Which one of the following processes is exothermic? - Answer ✅ Burning wood in a
campfire
Equal amounts of heat are added to equal masses of substances A and B at the same
temperature, but substance B gets hotter. What is true of their heat capacities (c)?
A) c(A) > c(B)
B) c(B) > c(A)
C) c(a) = c(B)
D) Not enough info - Answer ✅ A) c(A) > c(B)
An unknown solid is added to water in a calorimeter. The temperature of the water
increases. What does this say about the reaction? - Answer ✅ E) Both A and D are
correct
What is the identity of a 100. G sample of metal that, upon absorbing 4680 J of heat,
increases in temperature by 52.0 degrees C?
A) Mg
B) Al
C) Ti
D) Fe - Answer ✅ B) Al
An 80.0 g sample of metal, initially at 96.0 degree C, is placed into 150. G of water
initially at 26.0 degree C in a calorimeter. The finial temperature of the water is 28.1
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Scholarsstudyguide. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $12.99. You're not tied to anything after your purchase.
