The hydrogen gas formed in a chemical reaction is collected over water at 30 °C at a total pressure of 732 mm Hg. What is the partial pressure of the hydrogen gas collected in this way?
Total pressure of hydrogen (H) formed = 732 mm Hg.
Temperature of water = 30 oC.
Partial pressure of the hydrogen(H) gas collected = ?
We know, Vapour pressure of water at 30 °C = 31.8 torr.
1 torr = 1mm Hg
Hence, 31.8 torr in mm Hg is 31.8 mmHg.