Question

Pure water consists of 11. 19% hydrogen by weight and 88. 81% oxygen by weight. what does the law of constant proportions tell you about a 100 g sample of pure water?

Answer 1

The law of constant proportion states that the percentage of each compound will stay constant regardless of the source size.

In other words, since 11.19% + 88.81% = 100%, in a 100 gram sample, these percentages will stay the same. In this case, 100% is "equal" to 100 grams.

So, 11.19 grams hydrogen and 88.81 grams oxygen will be present in a 100 gram sample of pure water.