Question

A 2.00L mixture of helium, nitrogen, and neon has a total pressure of 815 mmHg at a

Answer 1

Answer: The partial pressure of neon in the mixture is 263 mm Hg

Explanation:

According to Dalton's law, the total pressure is the sum of individual pressures.

$p_{total}=p_{He}+p_{N_2}+p_{Ne}$

Given : $p_{total}$ =total pressure of gases = 815 mm Hg

$p_{He}$ = partial pressure of helium = 201 mm Hg

$p_{N_2}$ = partial pressure of nitrogen = 351 mm Hg

$p_{Ne}$ = partial pressure of Neon = ?

putting in the values we get:

$815mm Hg=201 mm Hg+351 mm Hg+p_{Ne}$  

$p_{Ne}=263mmHg$

The partial pressure of neon in the mixture is 263 mm Hg