1. A sample of air was compressed to a volume of 24.4 L. The temperature was 298 K and the pressure was 3.74 bar. How many moles of gas were in the sample? If the sample had been collected from air at p = 1.00 bar, T = 298 K, what was the original volume of the gas? n= V=   2. What is the the root-mean-square speed of H2 molecules at 9.57 oC? 3. Determine the root-mean-square speed (in m/s) of NO molecules at 139.9 Torr and 99.90 °C?

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Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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Chapter1: Chemical Foundations
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1. A sample of air was compressed to a volume of 24.4 L. The temperature was 298 K and the pressure was 3.74 bar. How many moles of gas were in the sample? If the sample had been collected from air at p = 1.00 bar, T = 298 K, what was the original volume of the gas?

n=

V=

 

2. What is the the root-mean-square speed of H2 molecules at 9.57 oC?

3. Determine the root-mean-square speed (in m/s) of NO molecules at 139.9 Torr and 99.90 °C?

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