0.820 mole of hydrogen gas has a volume of 2.00 L at a certain temperature and pressure. What is the volume of 0.125 mole of this gas at the same temperature and pressure?

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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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A. 0.820 mole of hydrogen gas has a volume of 2.00 L at a certain temperature and pressure. What is the volume of 0.125 mole of this gas at the same temperature and pressure?  

B. A sample of nitrogen gas has a volume of 32.4 L at 20°C. The gas is heated to 220°C at constant pressure. What is the final volume of nitrogen?

C. The gas pressure in an aerosol can is 1.8 atm at 25°C. If the gas is an ideal gas, what pressure would develop in the can if it were heated to 475°C? 

D. A small bubble rises from the bottom of a lake, where the temperature and pressure are 4°C and 3.0 atm, to the water’s surface, where the temperature is 25°C and the pressure is 0.95 atm. Calculate the final volume of the bubble if its initial volume was 2.1 mL. 

E. Calculate the volume occupied by 35.2 g of methane gas (CH4 ) at 25°C and 1.0 atm.

F. A gas evolved during the fermentation of sugar was collected at 22.5°C and 702 mmHg. After purification, its volume was found to be 25.0 L. How many moles of gas were collected? 

G. How many molecules of  Ngas can be present in a 2.5 L flask at 50°C and 650 mmHg?

H. Calculate the mass, in grams, of 2.74 L of CO gas measured at 33 °C and 945 mmHg.

 

I. Calculate the density, in g/L, of SFgas at 27.0°C and 0.500 atm pressure.

 

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