Solution-Excess hydrochloric acid to produce hydrogen gas

Excess hydrochloric acid to produce hydrogen gas

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Reference no: EM132509024

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 749 mm Hg. If the wet H2 gas formed occupies a volume of 8.54 L, the number of moles of Zn reacted was mol. The vapor pressure of water is 17.5 mm Hg at 20 °C.

2) Aluminum reacts with aqueous sodium hydroxide to produce hydrogen gas according to the following equation:

2Al(s) + 2NaOH(aq) + 6H2O(l)2NaAl(OH)4(aq) + 3H2(g)

The product gas, H2, is collected over water at a temperature of 25 °C and a pressure of 742 mm Hg. If the wet H2 gas formed occupies a volume of 8.91 L, the number of grams of H2 formed is g. The vapor pressure of water is 23.8 mm Hg at 25 °C.

Reference no: EM132509024

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Excess hydrochloric acid to produce hydrogen gas : 1) Zinc metal reacts with excess hydrochloric acid to produce hydrogen gas according to the following equation:

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Excess hydrochloric acid to produce hydrogen gas

Reference no: EM132509024

Reference no: EM132509024

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