Question

calculate the molarity of a solution made with 15.7 g of NaCl in 100 ML solution

Answer 1

Answer:

Data:

Mass of solute: 15.7 g of NaCl

volume of solution: 100ML of solution

Molar mass of solute: 58 g/mol

Explanation:

Convert 100ML to dm3:

100ML=0.1dm3

M=grams of solute/molar mass of solute*dm3 of solution

M=15.7/58*0.1

M=2.70M