Question

calculate the relative molecular mass of hydrated copper sulphate​

Answer 1

Explanation:

blue hydrated copper sulfate crystals CuSO4. 5H2O, again a bit more tricky!

Cu = 63.5, S = 32, H = 1, O =16.

Just do this carefully in parts eg.

CuSO4 = 63.5 + 32 + (4 x 16) = 159.5 (160 if you use Cu = 64)

H2O = (2 x 1) + 16 = 18, 5 x 18 = 90.

Formula mass = 159.5 + 90 = 249.5 (250 if Cu = 64)

Answer 2

Answer:

249.69 g/mol

Explanation:

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