Question

What is the molality when 0.15 mol SO2 is dissolved in 100 ml water? Remember 1 ml of water = 1 gram of water)

Answer 1

100 ml of SO2 weights=( 1÷64)× 100 gm
=1.5625

So molality = Moles of substance/mass of solvent
=0.15÷1.562
=0.096