In an experiment which measures the volume of a generated gas by measuring the volume of displaced water, what volume of water (18.0152 g/mol) would be displaced by 250.0 ml of 3.00% by mass aqueous hydrogen peroxide (34.0146) at 19.5 deg C, on a day when the barometric pressure is 749.0 torr? Assume the density of the hydrogen peroxide is 1.00 g/mol. The vapor pressure of water at 19.5 deg C is 17.0 mm Hg. The atomic weight of Oxygen is 15.9994 daltons.
2H202 -> 2H20 + 2O2
a. 2.47 ml
b. 2.76 x 10^3 ml
c. 2.74 x 10^3 ml
d. 2.64 x 10^3 ml
e. 5.52 ml
--------------------Anyone have any ideas?
I tried getting the grams of H2O2 and converting that to moles..and than to ml...and then I got stuck...b/c I don't know how to change it correctly into ml of water.