Question

Plzzz solve this 13th que

Answer 1

Zinc sulphate contains 22.65% zinc
hence for 40 gm zinc needed will be
$\frac{22.65}{100} \times 40 \\ = 9.06g$

Answer 2

hola mate here is ur answer

given : mass percentage of zinc is 22.5% in 100% zinc sulphate , so hence the mass of zinc required to produce 40gm crystal ,is given by

22.5%/100×40g = 40×0.225 = 9.06g



so i think it helps u

be brainly