calculate the percentage loss of mass of hydrated copper[||] sulphate [ Cuso4.5H2O
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Percentage of loss in the mass
when hydrated Copper Sulphate is completely dehydrated is
36 %.
The molecular weight of water,
H2O=2(1)+16=18.
When 1 mole of CuSO 4⋅5H2O is heated, 5 moles of water are lost.
The molecular weight of,
CuSO 4⋅5H2O =64+32+4(16)+5(18)
=250 g/mol
Mass of water lost =5(18)=90 g
Percentage loss of mass of,
CuSO 4⋅5H2O = 90/250 ×100
=36 %.
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