Question

How many atoms of carbon are present in 34.2g
A) 6.02x1022
C)3.6*1023
B) 7.2x1022
D) 1.2x1022

Answer 1

6,022*10^23 atoms contain 12g of carbon

34.2 g contains 6.022 *10^23*34.2/12

17.16*10^23