Answer:
677.7 mmHg
Explanation:
This is Dalton's law, where you add each partial pressure into total.
You are given total pressure of 692.2 mmHg
Partical pressure of water is: 14.5 mmHg
To find the partial pressure of O2, you subtract the total pressure and the given vapor pressure of water.
If you want the answer in atm, it would be: 0.892 atm
677.7 mmHg X (1 atm/760 mmHg) = 0.892 atm
Hope this helps!