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Chemistry
Abel Herring
12 October, 15:03
The mass percent of oxygen in CaO is what
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Jerimiah Logan
12 October, 18:59
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Add the reltive atomic mass of Ca and O which are 40 and 16 respectively after addition we get molecular mass of CaO which is 40+16=56 now divide atomic mass of O by molecular mass of CaO and multiply it with 100 as show n 16/56 * 100=28.57%
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