Gypsum is a hydrate of calcium sulphate 1g of sample contains 0.791g of CaSo4 how many moles of CaSo4 are there in the sample assuming rest of sample is water how many moles of water are there in the sample show the result is consistent with the formula CaSo4.2H2O
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Explanation:
apply law moles
172 gm contains 136 caso4
0.791 gm contains 0.625 gm of caso4
moles of caso4 = 0.0046
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