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What are the percentage compositions of hydrogen and oxygen in water (H_(2)O) ? (H =1 , O = 16) |
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Answer» SOLUTION :Molecular mass of water , `H_(2) O = 2 + 16 = 18` AMU . Percentage of hydrogen `H_(2)O` has two ATOMS of hydrogen So , mass of hydrogen in `H_(2)O = 2` amu . Mass of oxygen = 16 amu `therefore` percentage of hydrogen = `(2)/(18) xx 100 = 11.1` and percentage of oxygen = `(16)/(18) xx 100 = 88.9` . |
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