Q. Air contains $79%$ $N_{2}$ and $21% O_{2}$ by volume. If the barometric pressure is 750 mmHg. The partial pressure of oxygen is

2218 225 States of Matter Report Error

A

$157.7 mm H g$

68%

B

$175.5 mm H g$

11%

C

$315.0 mm H g$

8%

D

none

13%

Solution:

Calculate $M_{e ff}$