1) Zinc metal reacts with excess hydrochloric acid to produce hydrogen gas according to the following equation:
Zn(s) + 2HCl(aq) ZnCl2(aq) + H2(g)
The product gas, H2, is collected over water at a temperature of 20 °C and a pressure of 750 mm Hg. If the wet H2 gas formed occupies a volume of 9.18 L, the number of grams of H2 formed is g. The vapor pressure of water is 17.5mm Hg at 20 °C.
2) 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 20 °C and a pressure of 746 mm Hg. If the wet H2 gas formed occupies a volume of 6.33 L, the number of grams of H2 formed is g. The vapor pressure of water is 17.5mm Hg at 20 °C.
1) Zinc metal reacts with excess hydrochloric acid to produce hydrogen gas according to the following equation:
Zn(s) + 2HCl(aq) ZnCl2(aq) + H2(g)
The product gas, H2, is collected over water at a temperature of 20 °C and a pressure of 750 mm Hg. If the wet H2 gas formed occupies a volume of 9.18 L, the number of grams of H2 formed is g. The vapor pressure of water is 17.5mm Hg at 20 °C.
2) 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 20 °C and a pressure of 746 mm Hg. If the wet H2 gas formed occupies a volume of 6.33 L, the number of grams of H2 formed is g. The vapor pressure of water is 17.5mm Hg at 20 °C.
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