Question

A solution contains 5 g of copper sulphate in 70 g of water. Calculate the concentration in terms of mass by mass percentage of the solution.​

Answer 1

Answer:

mass of solute = 5

mass of solution = 5+70 = 75

so mass of solute/mass of solution ×100

= 5/75×100

= 1/15×100

=20/3

=6.66%

Answer 2

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MASS OF COPPER=5G

MASS OF WATER=70g

MASS IF SOLUTION=5+70=75g

CONCENTRATION OF SOLUTION= 5/75 × 100

=1500

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