A volume of 550ml of gas was collected over water at 21oc, Chemistry

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A volume of 550ml of gas was collected over water at 21oc

Potassium chlorate (KClO3) was heated to give oxygen.

2KClO3 (s) ? 2KCl (s) + 2O2 (g)

A volume of 550mL of gas was collected over water at 21oC and an atmospheric pressure of 743 Torr. The vapor pressure of water at 21oC is 19 Torr. How many moles of oxygen were collected?

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Chemistry: A volume of 550ml of gas was collected over water at 21oc

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Chemistry: A volume of 550ml of gas was collected over water at 21oc

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