If the flask is open to the atmosphere, the mercury levels are equal. For each of the following situations in which a gas is contained in the flask, calculate the pressure in the flask in torr, atmospheres, and pascals.

(a) ha = 150. mm
torr
atm
pascals
(b) hb = 230. mm
torr
atm
pascals
(c) Calculate the pressures in the flask in parts a and b (in torr) if the atmospheric pressure is 685 torr.

case a
torr

case b
torr