1. The problem statement, all variables and given/known data The total number of atoms in 1.00 g of CaCO3 (MM = 100.0 g/mol) is: 3. The attempt at a solution My solution: 1.00 / 100.0 = 0.01, then 0.01 x 6.022x10^23 = 6.022x10^21 atoms. However, the correct answer is 3.01 x 10^22. How was my approach wrong and did I miss any steps? Any help much appreciated.