Question

1- Calcule MASSA MOLAR de uma molécula de etanol (CH,CH,OH):
a) 6 g/mol.
b) 16 g/mol.
c) 24 g/mol.
d) 46 g/mol.
e) 48 g/mol.

2-Agora, calcule a MASSA MOLAR do Gás carbônico (CO2):
a) 8 g/mol.
b) 12 g/mol.
c) 26 g/mol.
d) 24 g/mol.
e) 44 g/mol.​

Answer 1

Resposta:1)d) 46 g/mol.

Explicação:

1)C2H6O--->12.2+1.6+16.1--->24+6+16--->46 g/mol

2)CO2--->112.1+16.2--->12+32--->46 g/mol