The Ideal Gas Law: Density Video Lessons

Concept:

# Problem: The density of a gas is 1.43 g/L at a temperature of 23° C and a pressure of 0.789 atm. Calculate the molar mass of the gas. Express the molar mass to three significant figures and include the appropriate units.

###### FREE Expert Solution

We’re being asked to calculate for the molar mass of a gas with a density of 1.43 g/L at 23°C, 0.789 atm

To calculate using density, we’re going to use the ideal gas equation.

$\overline{){\mathbf{P}}{\mathbf{V}}{\mathbf{=}}{\mathbf{n}}{\mathbf{R}}{\mathbf{T}}}$

$\frac{\mathbf{P}\overline{)\mathbf{V}}}{\overline{)\mathbf{V}}}\mathbf{=}\frac{\mathbf{n}\mathbf{R}\mathbf{T}}{\mathbf{V}}$

$\mathbit{P}\mathbf{=}\frac{{\mathbf{n}}\mathbf{RT}}{\mathbf{V}}$

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###### Problem Details

The density of a gas is 1.43 g/L at a temperature of 23° C and a pressure of 0.789 atm. Calculate the molar mass of the gas. Express the molar mass to three significant figures and include the appropriate units.

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the The Ideal Gas Law: Density concept. You can view video lessons to learn The Ideal Gas Law: Density. Or if you need more The Ideal Gas Law: Density practice, you can also practice The Ideal Gas Law: Density practice problems.

What professor is this problem relevant for?

Based on our data, we think this problem is relevant for Professor Nwanze's class at BC.