If a gas pressure gauge reads 15 mm hg, what is the pressure in atmospheres?

For this problem, we are asked to convert the value from units of mmHg to atm. The conversion factor would be 1 atm is equal to 760 mmHg. We convert as follows:

15 mmHg x (1 atm / 760 mmHg) = 0.02 atm

Hope this answers the question. Have a nice day.