calculate the number of molecules in 1 kg of calcium chloride
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in 1 kg or 1000g of cacl2 no. of moles are=1000/111
=9moles
no. of molecules=6×10^23/9
=0.66×10^23
=6.6×10^22
=9moles
no. of molecules=6×10^23/9
=0.66×10^23
=6.6×10^22
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