Question

Qual a massa molecular (MM) de H₂O e NH₃, Dados: O=16,0 N=14,0 e H=1,0
1) ponto 17 g/mol e 20 g/mol
2)18 g/mol e 17 g/mol
3) 17 g/mol e 18 g/mol
4) 20 g/mol e 17 g/mol

Answer 1

Resposta:2)18 g/mol e 17 g/mol

Explicação:

H2O-->1.2+16.1--->2+16--->18 g/mol

NH3--->14.1+1.3--->14+3--->17 g/mol