Quicklime contains 71.47% of calcium. How much calcium is present in a sample of quicklime which contains 16g of oxygen ?
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Quicklime is CaO
1 mole of O is present therefore 1 mole of CaO is given
Therefore % of Ca in CaO is = Mass of Ca÷Mass of CaO×100 (in numerator)
71.4= x÷56×100
71.4×56÷100= X
39.98=X
Therefore 39.98g of Ca is present in the sample
Hope it helps....
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Quicklime is CaO
1 mole of O is present therefore 1 mole of CaO is given
Therefore % of Ca in CaO is = Mass of Ca÷Mass of CaO×100 (in numerator)
71.4= x÷56×100
71.4×56÷100= X
39.98=X
Therefore 39.98g of Ca is present in the sample
Not sure...hope it helps you...
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