Question

A sample of C3H8 has 9.44 × 1024 H atoms. How many carbon atoms does the sample contain

Answer 1

First you have to write a balanced equation..

Answer 2

Do you know the balanced equation? Remember that this is a hydrocarbon

Answer 3

Let me know.

Answer 4

A combustion reaction is happening. When you see CH no matter what are the subscripts. It is hydrocarbon.
C3H8 + O2------ ? + ?

Answer 5

You don't need a balanced reaction because there is no reaction occurring. The question is asking you to look at the ratio of atoms in the formula. You know that for every 3 C atoms there must be 8 H atoms. You know the total number of H atoms present, so use the formula as a ratio

Answer 6

I know, but it is better to always write it.

Answer 7

not always. in this case, the intent is to understand formula ratios. Balanced reactions come later.