What is 69.4 cm Hg in atm?
69.4 cm HG is the same as 0.91315 atmospheres. This is calculated using the standard formula of 1atm = 75.999 cm Hg. Therefore, 69.4 cm HG is converted by dividing it by 75.999 to get 0.91315 atm. Go to http://www.chemteam.info/GasLaw/PressureConversions.html for more details.