(a) What is meant by concentration of a solution?
(b) The concentration of a salt solution in terms of mass percentage is 20% and the mass of the solution is 550 g. Determine the mass of solute present in the solution.
(a) The concentration of a solution is the amount of solute present in a given quantity of the solution.
Mass percentage of solution = 20%
Mass of solution = 550 g
Mass of solute = m
Since mass percentage of solution = (mass of solute/ mass of solution) X 100
Therefore, Mass of Solute = (Mass percentage of Solution x Mass of Solution) / 100
Substituting the values we get
m = (20 x 550)/100
= 110 g
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