At a certain temperature and pressure, one liter of CO2 gas weighs 1.35 g. What is the mass of one liter of N2 gas at the same temperature and pressure?

Question

Chemistry

Madelyn Stewart

4 March, 15:56

At a certain temperature and pressure, one liter of CO2 gas weighs 1.35 g. What is the mass of one liter of N2 gas at the same temperature and pressure?

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Ace Foley · Answer 1

To solve this problem, we use the ideal gas equation which is expressed as PV=nRT. It has been said that the pressure and the temperature for the two gases are equal therefore P/T is a constant value. We can use the two conditions given in order to solve this problem without the pressure and temperature given. Calculation are as follows:

P/RT = n1/V1 = n2/V2

Condition 1 for the carbon dioxide gas and 2 for the nitrogen gas. Let x be the mass of the nitrogen gas.

1.35 g (1mol CO2 / 44.01 g CO2) / 1 L = x (1mol N2 / 28.02 g N2) / 1 L

x = 0.86 g N2