Posted by Jay on Saturday, April 3, 2010 at 11:41am.
5% v/v solution means 5 mL H2O2 in 100 mL solution; therefore, in 969 mL solution there will be 5 x (969/100) =?? ml H2O2.
m = moles/kg solvent.
1.35 m means 1.35 moles CaCl2/kg solvent.
So you have 1.35 moles CaCl2.
Calculate moles water in 1 kg water.
mole fraction CaCl2 = moles CaCl2/total moles.
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