Answer:
5.66 moles
Step-by-step explanation:
Step 1: List the known quantities and plan the problem.
number of C atoms = 3.408 × 10^24
1 mole = 6.02 × 10^23 atoms
So the unknown is 4.72 × 1024 = ? mol C
Step 2: Put the equation together
4.72 × 10^24 atoms × 1 mol/ 6.02 × 10^23 atoms
= 5.66113
But this is not the final answer. The final answer must be rounded to the nearest hundredth
5.66113 rounded = 5.66
So there are 5.66 moles