Resposta :
Resposta:Segue as contas abaixo na explicação
Explicação:
a)NaF-->23.1+19.1--->23+19--->42 g/mol
b)H2O-->1.2+16.1--->2+16--->18 g/mol
c)NH3-->14.1+1.3--->14+3--->17 g/mol
d)CaCO3-->40.1+12.1+16.3--->40+12+48--->100 g/mol
e)Fe(OH)3-->56.1+16.3+1.3--->56+48+3--->107 g/mol
f)H2SO4-->1.2+32.1+16.4--->2+32+64--->98 g/mol
g)C27H44O-->12.27+1.44+16.1--->324+22+16--->362 g/mol
h)Na2CO3--->23.2+12.1+16.3--->46+12+48--->106 g/mol