A solution is said to contain 3 grams of chlorine gas and 5 moles of hydrogen gas in 10 moles of water. Calculate the mole fraction of all components in the solution

Question

how to calculate this someone help

Answer 1

Mole fraction is just what is says it is. It the moles of something divided by the total moles present, i.e. it is the fraction of the total moles.

3 g Cl2 gas x 1 mol Cl2 / 71 g = 0.042 moles Cl2

moles H2 = 5 moles

moles H2O = 10 moles

TOTAL MOLES = 15.042

mole fraction Cl2 = 0.042 / 15.042 = 0.003

mole fraction H2 = 5 / 15.042 = 0.33

mole fraction H2O = 10 / 15.042 = 0.66