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Calculate the mass of Fe(NH4)2(SO4)2.6H2O(s) required to prepare 25ml of 1.0 M Fe(NH4)2(SO4)2.6H20(aq)

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25ml of 1.0M contains 0.025 moles of solute.

So, how many grams is that for this compound?

Would you do moles/molar mass to find the grams?

mols = grams/molar mass so
grams = mols x molar mass

No

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