17.Oxygen gas can be prepared by heating potassium chlorate according to the following equation:
2KClO3(s)2KCl(s) + 3O2(g)
The product gas, O2, is collected over water at a temperature of 25 °C and a pressure of 755 mm Hg. If the wet O2 gas formed occupies a volume of 6.22 L, the number of grams of O2 formed is
g. The vapor pressure of water is 23.8 mm Hg at 25 °C.
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17.Oxygen gas can be prepared by heating potassium chlorate according to the following equation:
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