a total of 0.400 L of hydrogen gas is collected over water at 18 C. The total pr
ID: 1001931 • Letter: A
Question
a total of 0.400 L of hydrogen gas is collected over water at 18 C. The total pressure is 742 torr, if the vapor pressure of water at 18 C is 15.5 torr, what is the partial pressure of hydrogen ? a total of 0.400 L of hydrogen gas is collected over water at 18 C. The total pressure is 742 torr, if the vapor pressure of water at 18 C is 15.5 torr, what is the partial pressure of hydrogen ? a total of 0.400 L of hydrogen gas is collected over water at 18 C. The total pressure is 742 torr, if the vapor pressure of water at 18 C is 15.5 torr, what is the partial pressure of hydrogen ?Explanation / Answer
Ptotal = pH2 + pH2O
742 torr = pH2 + 15.5 torr
pH2 = 742 torr - 15.5 torr = 726.5 torr.