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Calculate the mass of salt needed to prepare 100 cm3 of 0.05 M solution of:

(i) Fe(NH4)2(SO4)2.6H2O
(ii) FeNH4(SO4)2.12H2O

1 answer

How many mols do you want? That's M x L = ?
Convert mols to grams. grams = mols x molar mass.
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