CHEM 1411 - CHAPTER 9 EXAM
QUESTIONS WITH 100% CORRECT
ANSWERS L LATEST VERSION 2025/2026.
How many moles of CO2 gas are present in a 9.1 L container at 25 °C and 1.35 atm? -
ANS 0.502 moles
On a very cold day, you notice that your tires look a bit deflated than warmer days. This
observation can be explained by _____. - ANS Charles law
A sample of nitrogen gas occupies 9.20 L at 21 °C and 0.959 atm. If the pressure is increased to
1.15 atm at constant temperature, what is the newly occupied volume? - ANS 7.67 L
What is the pressure for STP conditions? - ANS 760 mm Hg
What is the pressure in a 5.80 L container that has 0.545 moles of oxygen gas at 22.0 °C? -
ANS 2.28 atm
What is the relationship between pressure and volume of a gas at constant temperature? -
ANS as volume decreases, pressure increases
What is the volume for 1.00 mole of gas at STP? - ANS 22.4 L
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
QUESTIONS WITH 100% CORRECT
ANSWERS L LATEST VERSION 2025/2026.
How many moles of CO2 gas are present in a 9.1 L container at 25 °C and 1.35 atm? -
ANS 0.502 moles
On a very cold day, you notice that your tires look a bit deflated than warmer days. This
observation can be explained by _____. - ANS Charles law
A sample of nitrogen gas occupies 9.20 L at 21 °C and 0.959 atm. If the pressure is increased to
1.15 atm at constant temperature, what is the newly occupied volume? - ANS 7.67 L
What is the pressure for STP conditions? - ANS 760 mm Hg
What is the pressure in a 5.80 L container that has 0.545 moles of oxygen gas at 22.0 °C? -
ANS 2.28 atm
What is the relationship between pressure and volume of a gas at constant temperature? -
ANS as volume decreases, pressure increases
What is the volume for 1.00 mole of gas at STP? - ANS 22.4 L
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
