Homework Answers
Osmolarity = molarity × Van't Hoff factor
molarity = osmolarity / Van't Hoff factor
Van't Hoff factor of NiSO4 = 2
molarity of NiSO4 = 0.300 osmol/L / 2 = 0.150 mol/L
mass of 0.150mol of NiSO4 = 0.150mol × 154.75g/mol = 23.21g
mass of NiSO4 in 100ml of the solution = 2.321g
Therefore
℅ of NiSO4 = 2.321℅ (w/v)
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