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Author Question: A sample of N2 gas is contaminated with a gas (A) of unknown molar mass. The partial pressure of ... (Read 60 times)

LaDunn

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on: Mar 21, 2021

Question 1

A sample of helium gas occupies 19.1 L at 23°C and 0.956 atm. What volume will it occupy at 40°C and 1.20 atm?

◦ 25.4 L
◦ 26.5 L
◦ 14.4 L
◦ 16.1 L
◦ 19.3 L

Question 2

A sample of N2 gas is contaminated with a gas (A) of unknown molar mass. The partial pressure of each gas is known to be 200. torr at 25°C. The gases are allowed to effuse through a pinhole, and it is found that gas A escapes at 3 times the rate of N2. The molar mass of gas A is:

◦ 3.11 g/mol.
◦ 84 g/mol.
◦ 9.34 g/mol.
◦ 252 g/mol.
◦ none of these are correct.
Chemistry: An Atoms First Approach ¦ Zumdahl, DeCoste ¦ 3rd Edition
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Marked as best answer by LaDunn on Mar 21, 2021

mariahkathleeen

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Reply #1 on: Mar 21, 2021
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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LaDunn

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Reply 2 on: Mar 21, 2021
Excellent

sultansheikh

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Reply 3 on: Yesterday
Great answer, keep it coming :)

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