Question

A solution of potassium chloride in water is 35%(m/v). The density of the solution is 1.2 g mL^-1. Calculate the concentration of the solution in %(m/m)

Answer 1

Answer:

29.16 %

Explanation:

first : mass/volume % of potassium = 35%. so, mass of potassium = 35/100* 100g. =35g. volume of solution = 100ml . mass of solution = vol*density.

=100*1.2=120g

mass /mass%=

mass of solute / mass of solution* 100

=35/120*100

=175/6

29.16%