In an experiment, 172.1 g of gypsum, CaSO₄·2H₂O (M = 172.1 g mol⁻¹), was heated to constant mass in a large crucible - VCE - SSCE Chemistry - Question 13 - 2011 - Paper 1
Question 13
In an experiment, 172.1 g of gypsum, CaSO₄·2H₂O (M = 172.1 g mol⁻¹), was heated to constant mass in a large crucible. The loss in mass of the crucible and contents w... show full transcript
Worked Solution & Example Answer:In an experiment, 172.1 g of gypsum, CaSO₄·2H₂O (M = 172.1 g mol⁻¹), was heated to constant mass in a large crucible - VCE - SSCE Chemistry - Question 13 - 2011 - Paper 1
Step 1
The reaction that occurred when the gypsum was heated was
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Answer
The mass loss during the heating of gypsum indicates the release of water molecules. The correct reaction is:
