Chapter 5 - The Gaseous State - Questions and Problems - Page 221: 5.85

Please see the work below.

We know that $P_{H_2}=760mmHg\times 0.250=190.0mmHg$ $P_{CO_2}=760mmHg\times 0.650=494.0mmHg$ $P_{HCl}=760mmHg\times 0.054=41.04mmHg$ $P_{HF}=760mmHg\times 0.028=21.28mmHg$ $P_{SO_2}=760mmHg\times 0.017=12.92mmHg$ $P_{H_2S}=760mmHg\times 0.001=0.076mmHg$