Questions: What is the molar mass of nitrogen gas?
28.0 g / mol
1.20 x 10^23 g / mol
14.0 g / mol
6.02 x 10^23 g / mol
Transcript text: What is the molar mass of nitrogen gas?
$28.0 \mathrm{~g} / \mathrm{mol}$
$1.20 \times 10^{23} \mathrm{~g} / \mathrm{mol}$
$14.0 \mathrm{~g} / \mathrm{mol}$
$6.02 \times 10^{23} \mathrm{~g} / \mathrm{mol}$
Solution
Solution Steps
Step 1: Understanding the Composition of Nitrogen Gas
Nitrogen gas is diatomic, meaning it consists of two nitrogen atoms. The chemical formula for nitrogen gas is \( \text{N}_2 \).
Step 2: Calculating the Molar Mass of a Single Nitrogen Atom
The atomic mass of a single nitrogen atom is approximately \( 14.0 \, \text{g/mol} \).
Step 3: Calculating the Molar Mass of Nitrogen Gas
Since nitrogen gas is diatomic (\(\text{N}_2\)), its molar mass is twice the atomic mass of a single nitrogen atom:
\[
\text{Molar mass of } \text{N}_2 = 2 \times 14.0 \, \text{g/mol} = 28.0 \, \text{g/mol}
\]