Answer: 0.0086 moles of hydrogen are produced.
Step-by-step explanation:
According to ideal gas equation:
total pressure = 755.2 mm Hg
pressure of water at
= 19.8 mm Hg
P = pressure of hydrogen = (755.2-19.8) mm Hg = 735.4 mm Hg = 0.97 atm
(760 mm Hg = 1atm)
V = Volume of gas = 215.8 ml = 0.2158 L
n = number of moles
R = gas constant =
T =temperature =
Thus 0.0086 moles of hydrogen are produced.