Question

What is the difference between molecular mass and molar mass? Calculate the molecular mass and molar mass of carbon monoxide.​

Answer 1

Molecular mass is the mass of a molecule of a substance. It is also known as Molecular weight. Molar mass is the mass of 1 mole of a substance or Avogadro's number of the molecules of that substance.

Answer 2

Molecular Mass:-

• It is the Mass of a molecule of a substance.
• It has unit u

Molecular mass of Carbon Monoxide:-

$\\ \sf\longmapsto CO$

$\\ \sf\longmapsto 12u+16u$

$\\ \sf\longmapsto 28u$

Molar mass:-

• It is the mass of 1mole of a substance
• It has unit g/mol

Molar mass of Carbon monoxide

$\\ \sf\longmapsto 28g/mol$