solution has a density of 1.279 g/mL and the percent of solute is 26%. Calculate the molality of the solution? (Mol. Weight of = 208)

solution has a density of 1.279 g/mL and the percent of solute is 26%.

1.	solution has a density of 1.279 g/mL and the percent of solute is 26%. Calculate the molality of the solution? (Mol. Weight of = 208)
Answer» alculate the MASS of and mass of water in the solutionFrom the given,Density of the solution = 1.279 g/mlDensity of the solution is CALCULATED by the FOLLOWING formula.From the above formula, density is in g/ml and PERCENTAGE of solute is given ,THEREFORE, volume of the solution is 100 mL.Therefore, mass of solute in given 26% of solution=Hence,Molarity of the solution is 1.689 m.