Gases & Solutions
States of Matter
A mixture of dihydrogen and dioxygen at one bar pressure contains 20% by weight of dihydrogen. Calculate the partial pressure of dihydrogen.
Solution: In 100 g of mixture, the mass of hydrogen and oxygen will be 20 and 80 g respectively.
The number of moles of hydrogen are .
The number of moles of oxygen are .
The mole fraction of hydrogen is .
Partial pressure of hydrogen is .