D K.

asked • 05/11/21

Daltons Law of Partial Pressures

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 20 °C and a pressure of 746 mm Hg. If the wet O2 gas formed occupies a volume of 5.77 L, the number of grams of O2 formed is (fill in the blank) g. The vapor pressure of water is 17.5 mm Hg at 20 °C.

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