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Dry the hydrate as instructed in the lab procedure, noting down it's mass until it appears to no longer decrease (no more water bound in the sample).

Mass of Salt + Crucible (after 1st heating)= 27.80 g

Mass of Salt + Crucible (after 2nd heating)=27.74 g

What is the Mass of Salt after second heating (ie. dry CuSO4)?

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