Question

Can someone please look at this?

Answer 1

Answer:

$\large \boxed{\text{110 mmHg}}}$

Explanation:

We can use Dalton's Law of Partial Pressures:

Each gas in a mixture of gases exerts its pressure separately from the other gases.

In other words, if a gas makes up 3.0 % of the atmosphere, its partial pressure is 3.0 % of the total pressure.

$p_{\text{N}_{2}} = p_{\text{tot}} \times \dfrac{\text{3.0 parts N}_{2}}{\text{100 parts atmosphere}}= \text{3700 mmHg} \times \dfrac{\text{3.0 mmHg}}{\text{100 mmHg}} = \textbf{110 mmHg}\\\\p_{\text{N}_{2}} = \large \boxed{\textbf{110 mmHg}}$