Question

Calculate the percentage composition of 18 gram sample of water with contains 2g of hydrogen and 16g of oxygen

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Answer 1

Here you go

Mass percent of oxygen = $\frac{16}{18}$ × 100 = 88.9%

Mass percent of hydrogen = $\frac{2}{18}$ × 100 = 11.1%

totally it must be 100

Adding 88.9 and 11.1 = 100

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Answer 2

Answer:

Mass percentage of the o2 is 16*100/18 is 88.9

Mass Percentage of the h is 2*100/18 is 11.1

Explanation:

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