In an experiment to determine the percentage of water in a solid hydrate by heating, what is the bes — Laboratory Chemistry Question
Question
In an experiment to determine the percentage of water in a solid hydrate by heating, what is the best indication that all the water has been removed?
A.
The solid melts.
B.
The solid changes color.
C.
Water vapor no longer appears.
D.✓ Correct
Successive weighings give the same mass.
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