- (E) The pressure in the bottle would be less than atmospheric pressure by the
Hg equivalent height of the 30 mm of water above the level in the collecting
pan. This is calculated as 40.8 mm water/(13.6 mm water/1 mm Hg) and must
be subtracted from atmospheric pressure. The other adjustment is to subtract
the vapor pressure of water that is in the hydrogen gas since it was collected
over water. This pressure is given as 30.0 mm Hg. Subtracting each of these
from 730.mm Hg, the given atmospheric pressure, you have 730. mm −
40.8 mm/13.6 − 30.0 mm.
marvins-underground-k-12
(Marvins-Underground-K-12)
#1