Solutions

Given that the molecular weight (MW) of the dibasic acid is 118, the mass of the acid is 35.4 g, and the density of the solution is 1.00 g/cm , we can calculate the normality and molality.
Step 1: Calculating Normality (N) Normality is given by the formula: The equivalent weight of the acid is the molecular weight divided by 2, as it is dibasic. So, The normality is: Step 2: Calculating Molality (m) Molality is calculated using: First, we calculate the moles of solute: Since the density of the solution is 1.00 g/cm , 1 liter of solution weighs 1000 g. Therefore, the mass of the solvent is: Now, the molality is: Thus, the normality and molality of the solution are 0.6 N and 0.3 mol Kg , respectively.