A sample of #C_3H_8# has #8.48x10^24# H atoms. How many carbon atoms does the sample contain?

1 Answer
Mar 5, 2017

Look at the ratio of hydrogen to carbon in propane......

Explanation:

For every #"8 hydrogens"# in propane there are #"3 carbons"#.

And thus if there are #8.48xx10^24# hydrogen atoms, there are #3/8xx8.48xx10^24# carbon atoms, approx. #3xx10^24# carbon atoms. What is the mass of this quantity of carbon atoms?