sodium hydride reacts with excess water to produce aqueous
sodium hydroxide and hydrogen gas. How many grams of NaH will
produce 0.923 L of gas at 23.4 C and a barometric pressured of 765
torr, when the hydrogen is collected over water. The vapor pressure
of water at this temperature is 28 torr.
NaH (s) + H2O (i) NaOH (aq) + H2 (g)