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Calculate the mass per cent of different elements present in sodium sulphate (Na2SO4).
Calculate the mass per cent of calcium, phosphorus and oxygen in calcium phosphate Ca3(PO4)2.
In CH4 the mass % of C and H will be
Calculate the percentage composition of H and O in water molecule.
What is the difference between empirical and molecular formula? A compound contains 4.07 % hydrogen, 24.27 % carbon and 71.65 % chlorine. Its molar mass is 98.96 g. Find its empirical and molecular formulas?
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