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Question

Washing soda has the formula Na2CO3.10H2O. What mass of anhydrous sodium carbonate is left when all the water of crystallization is expelled by heating 57.2 g of washing soda?


A

17.4 g

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B

14.6 g

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C

28.3 g

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D

21.2 g

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E

42.8 g

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Solution

The correct option is D

21.2 g



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