In the compound zinc sulfate heptahydrate calculate the mass percent of water

The answer to your question is 43.9%

Explanation:

Data

ZnSO₄ 7H₂O

percent of H₂O

Process

- Calculate the molar mass of the molecule

molar mass of ZnSO₄ 7H₂O = 65 + 32 + (14 x 1) + (11 x 16)

                                              = 287g

molar mass of H₂O = (2 x 1) + 16 = 18 g x 7 = 126 g

- Calculate the mass percent of water

                          287 g 100%

                          126 g   x

                           x = (126 x 100)/287

                          x = 43.9 %                        

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