Answer:
Explanation:
Our [tex]H_2O_2[/tex] sample yielded 1g of [tex]H_2[/tex] and 16g of [tex]O_2[/tex], but our unknown sample yielded 2 times as much [tex]H_2[/tex] for the same amount of [tex]O_2[/tex].
What does this mean? that the H:O proportion for the unknown sample is twice the H:O proportion for the [tex]H_2O_2[/tex] sample.
What is the H:O proportion for the [tex]H_2O_2[/tex] sample? As we can see from its formula, it's 1:1, therefore the proportion for the unknown formula must be 2:1.
That means, two H atoms for every O atom. We could write that as: [tex]H_2O[/tex] and you should recognize that formula, for it is one of the most common compounds on earth, Water.
