Cheshiredoll Cheshiredoll

08-04-2016
Chemistry

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determime the number of moles in the following compounds; a. 125 g of H2SO4 b. 35 g of CuSO4 × 5H2O

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08-04-2016

Mr of H2SO4 = 2+32+64= 98g No. Of moles = 125/98= 1.28 moles. B) Mr of CuSO4 = 64+32+64=160 Mr of 5H2O = 18x5=90 CuSO4.5H2O = 160+ 90 = 250g No. Of moles = 35/250= 0.14 moles

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