Mrs. Jordan measures 18 grams of water into a beaker. If she doubles the amount of water that she puts into the beaker, how will the proportions by mass of hydrogen and oxygen in the water be affected?

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Chemistry

Zain

9 February, 10:57

Mrs. Jordan measures 18 grams of water into a beaker. If she doubles the amount of water that she puts into the beaker, how will the proportions by mass of hydrogen and oxygen in the water be affected?

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Donte Arias · Answer 1

Based on the law of definite proportion, a chemical compound is always made of the same proportion of elements by mass irrespective of the method in which it is prepared.

The chemical formula for water is H₂O i. e. 2 units of H combines with 1 unit of O. Thus the ratio by mass of H:O is 2:16. This ratio will remain unchanged even if the amount of water is double from 18 g to 26 g.