Niral P. answered 06/08/20
Tutor
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Synthetic Chemist With 7+ Years Teaching Experience
Hi Andrea!
This problem is a straight unit conversion problem. You just need to remember that 1 atmosphere of pressure is equal to 760 mmHg (or Torr).
145 mmHg * (1 atm / 760 mmHg) = 0.191 atm
85 mmHg * (1 atm / 760 mmHg) = 0.112 atm
Hope that helps!
-Niral