reaperqueen21
06.10.2021 •
Chemistry
A sample of a hydrated salt weighing 1.167 g is heated until no more water is given off. The mass of the anhydrous salt was 0.6298 a) What is the mass of water lost by the sample?
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Ответ:
The mass of water lost is:
(2) = 1 − 2 = 1.167 − 0.629 = 0.538
The mass % of water in the hydrated salt is:
(2) =
(2)
1
=
0.538
1.167 ∙ 100% = 46.0 %
0.538 g; 46.0 %
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