Question

The mass of oxygen and hydrogen in any sample of water is approximately in the ratio 8:1, how many grams of hydrogen would you find in 1 kg of water?

• A. 111.1 grams
• B. 888.8 grams
• C. 0.111 grams
• D. 0.888 grams

Answer 1

The correct option is A

111.1 grams

Given that the ratio of the mass of oxygen to hydrogen in any sample of water is 8:1.

We are given a sample of 1 kg of water = 1000 g of water.

Thus, the amount of hydrogen in 1 kg of water = $\frac{1}{8+1}\times 1000=\frac{1}{9}\times 1000$ = 111.1 grams