Millii
Sodium carbonate is Na2CO3 Molar mass Na2CO3 = 106g/mol Mol Na2CO3 in 5.3g = 5.3/106 = 0.05 mol Na2CO3
Atoms of Na = 0.05*2*6.022*10^23 = 6.022*10^22 Na atoms Atoms of C = 0.05*6.022*10^23 = 3.01*10^22 atoms Atoms of O = 0.05*3*6.022*10^23 = 9.303*10^22 atoms
Answers & Comments
Molar mass Na2CO3 = 106g/mol
Mol Na2CO3 in 5.3g = 5.3/106 = 0.05 mol Na2CO3
Atoms of Na = 0.05*2*6.022*10^23 = 6.022*10^22 Na atoms
Atoms of C = 0.05*6.022*10^23 = 3.01*10^22 atoms
Atoms of O = 0.05*3*6.022*10^23 = 9.303*10^22 atoms