AP Chemistry Unit 3
Flashcard
•
Chemistry
•
11th - 12th Grade
•
Practice Problem
•
Easy
Stephen Jeffcoat
Used 2+ times
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50 questions
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1.
FLASHCARD QUESTION
Front
According to kinetic molecular theory, in which of the following gases will the root mean square speed of the molecules be the highest at 200ºC? Options: SF6, H2O, HCl, Cl2, None, the molecules of all gases have the same root mean square speed at any given temperature.
Back
H2O
2.
FLASHCARD QUESTION
Front
A sample of a gas (5.0 mol) at 1.0 atm is expanded at constant temperature from 10.0 L to 15.0 L. The final pressure is ___ atm.
Back
0.67 atm
3.
FLASHCARD QUESTION
Front
A sample of He gas (2.35 mol) occupies 57.9 L at 300.0 K and 1.00 atm. What is the volume of this sample at 423 K and 1.00 atm?
Back
81.6 L
4.
FLASHCARD QUESTION
Front
The volume of a sample of gas (2.49 g) is 752 mL at 1.98 atm and 62ºC. What is the gas? Options: NO2, SO3, SO2, Ne, NH3
Back
NO2
5.
FLASHCARD QUESTION
Front
Gases generally have
Back
low density
6.
FLASHCARD QUESTION
Front
Which assumption of kinetic molecular theory describes why gases are extremely fluid?
Back
particles do not attract or repel one another
7.
FLASHCARD QUESTION
Front
What are the values for STP?
Back
0oC and 1 atm
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