Copper sulphate

How much g of water do we have to add to 240 g of an 84% CuSO4 solution to produce a 60% solution? (Express the mass of crystalline CuSO4 in the original solution and the resulting solution and compare them. )

Correct answer:

w =  96 g
m1 =  201.6 g
m2 =  201.6 g

Step-by-step explanation:

0.84·240 = 0.60 ·(240+w)

0.6w = 57.6

w = 57.6/0.6 = 96

w = 96

Our simple equation calculator calculates it.
m1=0.84 240=201.6 g
m2=0.60 (240+w)=0.60 (240+96)=51008=201.6=201.6 g  m1=m2

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