87.6/101.1032g/mole = 0.8664 moles of KNO3 A) molarity = 0.8664mole/1.5L = 0.578 mole/L B) molality = moles solute/kg solvent = 0.8664moles / (1.5*1.05 - 0.0876)kg = 0.582 molal C) 87.6/1050 *100 = 8.34% Solution 87.6/101.1032g/mole = 0.8664 moles of KNO3 A) molarity = 0.8664mole/1.5L = 0.578 mole/L B) molality = moles solute/kg solvent = 0.8664moles / (1.5*1.05 - 0.0876)kg = 0.582 molal C) 87.6/1050 *100 = 8.34%.