Question

'If 24grams of water will yield 4grams of hydrogen,how many grams of hydrogen will there be in 216 grams of water?

Answer 1

`H_2O -> 0.5O_2 + H_2`

Explanation:

Hydrogen (1 g), Oxygen (16 g).

24 grams of water is 1.33 moles.

But at the end, you will get 1.33 moles of hydrogen (which is not 4 grams).

If you do not consider this question has an error, Your solution:

`=(4times216)/24 = 36`

You will get `36` grams of hydrogen.

Answer 2

`36`g

Explanation:

First, you need to find the ratio of the yield of hydrogen to the mass of water. Therefore in this question the ratio is `4:24`. This can be simplified to the ratio `1:6`. If we call the mass of hydrogen `x`, the ratio of hydrogen to water in the unknown is `x:216` to find the mass of hydrogen you divide 216 by 6, therefore `x = 216/6 = 36`