This process is called meiosis! good luck!
Moles of hydrogen = 5.08 x 10^16
---------------------------
6.02 x 10^23
= 8.43 x 10^-8 moles.
When the ambient pressure is reduced to below the vapor pressure of the liquid, the liquid boils. Water typically boils at 100°C when the pressure is equal to 1 atm, but when the pressure is reduced using a vacuum pump, the water boils at room temperature.