A container holds three gases A,B,C. The partial pressure (PP) of B is three times as much as the PP of A. The PP of C is half the PP of A. The total pressure inside the container is 18.9 atm.

Question

Find the PP’s of all three gases.

Answer 1

This is a math question disguised as a chemistry question...

B = 3A

C = 0.5A

A+B+C = 18.9

A + 3A + 0.5A = 18.9

4.5A = 18.9

A = 4.2 atm

B = 12.6 atm

C = 2.1 atm

TOTAL = 18.9 atm