Question

How many atoms of carbon are there in 3 grams of carbon
?​

Answer 1

(3 grams of carbon) x (1 mole of carbon/12 grams ) = 3/12 = 1/4 of a mole of carbon. Then... ( 1/4 of a mole) x (6.02 x 1023 atoms/mole) = approximately 1.5 x 1023 atoms.

Answer 2

100000000000000000000