The question states that 18.02 g of the sugar is dissolved. Molarity of solution is defined as number of moles dissolved in 1 L. the molar mass of sugar - 360.4 g/mol The mass dissolved - 18.02 g Therefore number of moles of sugar - 18.02 g/ 360.4 g/mol = 0.05 mol number of moles in 100.0 mL of solution = 0.05 mol therefore number of moles in 1000 mL = 0.05 mol /100 x 1000 = 0.5 mol Molarity of solution = 0.5 mol/L
