Question

A sample of C3H8 has 2.64 x 10^24 atoms.

How many carbon atoms does the sample contain?

What is the total mass of the sample?

Answers

bobpursley
carbon atoms: if you are given the total atoms, then 3/11 of them must be carbon

total mass: mass=molemass*numberatoms/8*1/avagradronumber

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