The relative humidity of air equals the ratio of the partial pressure of water in the air to the equilibrium vapor pressure of water at the same temperature times 100%. If the relative humidity of the air is 58% and its temperature is 68 oF, how many moles of water are present in a room measuring 12 ft x 10 ft x 8 ft? The vapor pressure of water at 68 oF is 17.54 torr. The answer is 20, but for some reason I keep getting 15.127moles

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The relative humidity of air equals the ratio of the partial pressure of water in the air to the equilibrium vapor pressure of
water at the same temperature times 100%. If the relative humidity of the air is 58% and its temperature is 68 of, how
many moles of water are present in a room measuring 12 ft x 10 ft x 8 ft? The vapor pressure of water at 68 oF is 17.54 torr.
The answer is 20, but for some reason I keep getting 15.127moles
Transcribed Image Text:The relative humidity of air equals the ratio of the partial pressure of water in the air to the equilibrium vapor pressure of water at the same temperature times 100%. If the relative humidity of the air is 58% and its temperature is 68 of, how many moles of water are present in a room measuring 12 ft x 10 ft x 8 ft? The vapor pressure of water at 68 oF is 17.54 torr. The answer is 20, but for some reason I keep getting 15.127moles
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