Question

a certain volume of water contains 100,000 hydrogen atoms and 50,000 oxygen atoms. how many hydrogen atoms are in a volume of water containing 4,000,000 oxygen atoms?

Explanation:

Step1: Find the ratio of hydrogen to oxygen atoms

The ratio of hydrogen atoms to oxygen atoms in water is $\frac{100000}{50000} = 2$. This means for every 1 oxygen atom, there are 2 hydrogen atoms.

Step2: Calculate the number of hydrogen atoms for 4,000,000 oxygen atoms

If there are 4,000,000 oxygen atoms, and the ratio of hydrogen to oxygen is 2:1, then the number of hydrogen atoms is $4000000\times2 = 8000000$.

Answer:

8000000