What mass of cucl2 is contained in 75.85 g of a 22.4% by mass solution of cucl2 in water?

First step: convert 22.4% into fraction

that is 22.4/100 which is equivalent to 0.224

The mass of Cucl2 contained in 75.85 of 22.4% by mass of solution of CUcl2 in water is therefore,

0.224 x75.85=16.99g

alternatively

75.85 - - - >100%

? 22.4%

by cross multiplication = (22.4 x 75.85) / 100 = 16.99g