Pre-AP Chemistry

Pre-AP Chemistry

11th Grade

141 Qs

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Pre-AP Chemistry

Pre-AP Chemistry

Assessment

Quiz

Chemistry

11th Grade

Hard

NGSS
HS-PS4-1, HS-PS1-5, HS-PS1-3

+16

Standards-aligned

Created by

Charles Martinez

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141 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The density of an unknown gas is 2.00 grams per Liter at 3.00 atmosphere pressure and 127oC. What is the molar mass of this gas?

(254/3) R

188 R

(800/3) R

600 R

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

A gaseous mixture containing 7.0 moles of nitrogen, 2.5 moles of oxygen, and 0.5 moles of helium exerts a total pressure of 0.90 atmosphere. What is the partial pressure of the nitrogen?

0.13 atm

0.27 atm

0.63 atm

0.90 atm

3.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

A 2.00-liter sample of nitrogen gas at 27° C and 600. millimeters of mercury is heated until it occupies a volume of 5.00 liters. If the pressure remains unchanged, the final temperature of the gas is

68o C

120o C

477o C

677o C

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-2

4.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

A sample of 0.010 mole of oxygen gas is confined at 127°C and 0.80 atmosphere. What would be the pressure of this sample at 27°C and the same volume?

0.10 atm

0.20 atm

0.60 atm

0.80 atm

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

A sample of 3.0 grams of an ideal gas at 127°C and 1.0 atmosphere pressure has a volume of 1.5 liters. Which of the following expressions is correct for the molar mass of the gas? The ideal gas constant, R, is 0.08 (L ⋅ atm)/(mole ⋅ K).

[(0.08)(400)] /[(3.0)(1.0)(1.5)]

[(1.0)(1.5)]/ [(3.0)(0.08)(400)]

[(0.08)(1.0)(1.5)] /[(3.0)(400)]

[(3.0)(0.08)(400)] /[(1.0)(1.5)]

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Samples of F2 gas and Xe gas are mixed in a container of fixed volume. The initial partial pressure of the F2 gas is 8.0 atmospheres and that of the Xe gas is 1.7 atmospheres. When all of the Xe gas reacted, forming a solid compound, the pressure of the unreacted F2 gas was 4.6 atmospheres. The temperature remained constant. What is the formula of the compound?

XeF

XeF3

XeF4

XeF6

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Media Image

The system shown above is at equilibrium at 28 °C. At this temperature, the vapor pressure of water is 28 millimeters of mercury. The partial pressure of O2(g) in the system is

28 mm Hg

56 mm Hg

133 mm Hg

161 mm Hg

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