Explain the mass of a hydrated caso4

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The mass of a hydrated CaSO4• X H2O sample is 3.08 g. After heated gently for 20 min, the mass of the sample reduces to 2.72 g (water is completed removed by heating and only CaSO4 is left). How many H2O (X) are in CaSO4• X H2O?

Reference no: EM13537416

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