CHEM 134 C001 Lesson 1 Quiz Questions and Answers – Spring 2026 100- Correct - American Public University..

CHEM 134 C001 Lesson 1 Quiz | Questions and
Answers – Spring 2026 | 100% Correct - American
Public University.

Quiz Submissions - Lesson 1 Quiz
Brianna Smith (username: 5885911)

Attempt 1
Written: Dec 18, 2022 9:05 PM - Dec 18, 2022 10:14 PM


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Released: Dec 23, 2022 11:55 PM
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points

A KCl solution is prepared by dissolving 40.0 g KCl in 250.0 g of water at 25°C. What is the vapor pressure of the solution if
the vapor pressure of water at 25°C is 23.76 mm Hg?

25.5 mmHg

22.1 mmHg

20.5 mmHg

22.9 mmHg


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Calculate the molality of a 20.0% by mass ammonium sulfate (NH4)2SO4 solution. The density of the solution is 1.117 g/mL.

1.89 m

0.150 m

1.70 m

2.10 m

1.51 m


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, A solution is prepared by dissolving 17.75 g sulfuric acid, H2SO4, in enough water to make 100.0 mL of solution. If the
density of the solution is 1.1094 g/mL, what is the molality?

1.940 m H2SO4

0.1810 m H2SO4

1.810 m H2SO4

0.1775 m H2SO4


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