Oxygen gas can be prepared by heating potassium chlorate according to the following equation: 2KC1O3(s)- +2KCI(s) + 3O2(g) The

Question

Oxygen gas can be prepared by heating potassium chlorate according to the following equation:
2KC1O3(s)- +2KCI(s) + 3O2(g)
The product gas, O₂, is collected over water at a temperature of 20 °C and a pressure of 745 mm Hg. If the wet O₂ gas formed occupies a volume of 8.57 L, the number of grams of O₂ formed is g. The vapor pressure of water is 17.5 mm Hg at 20 °C.

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