Sodium metal reacts with water to produce hydrogen gas according to the following equation: 2Na(s) + 2H2O(l) → 2NaOH(aq) + H2(g). The product gas, H2, is collected over water at a temperature of 25 °C and a pressure of 745 mm Hg. If the wet H2 gas formed occupies a volume of 9.60 L, the number of grams of H2 formed is g. The vapor pressure of water is 23.8 mm Hg at 25 °C. How many grams of H2 are formed?