Molarity

Molarity of a solution of sulphuric acid is 0.8M and its density is 1.06 g/cc. Find the molality and mole fraction of the solution.

1 Answers

1357

Manish Shankar ·2014-08-01 00:54:24

Lets take the volume as 1 L

so moles of H2SO4=0.8

weight of H2SO4=0.8*98=78.4 g

weight of solution=volume*density=1000*1.06=1060 g

weight of water=1060-78.4=981.6 g

mole of water=981.6/18=54.56

molality=0.8/(0.981.6)

mole fraction=0.8/(0.8+54.56)

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