Question

Methane gas contains carbon atoms and hydrogen atoms in the ratio of 1 : 4. A sample of methane gas contains 92 hydrogen atoms. How many carbon atoms are in the sample? How many total atoms are in the sample?

Answer 1

Carbon: 23 Total: 119

Explanation:

Carbon:
We know that c : h is 1 : 4. Since we know what h is, 92, we will multiply our inequality to get 96. We will multiply our equality by 23. Giving us c : h is

23 : 92. This means there are 23 carbon molecules.

Total:

For this, we add our carbon and hydrogen atoms together. 96 + 24 = 119 total atoms.