Calculate the molar mass of sodium carbonate( Na2CO₃).

The correct answer is 106.

• The molar mass of sodium carbonate( Na₂CO₃) is 106.

The molar mass of sodium carbonate( Na₂CO₃) can be calculated as follows:

• It contains two atoms of sodium, one atom of carbon and three atoms of oxygen.

The molecular weight can be calculated as:

Na : 2 x 23.0 =  46

C : 1 x 12.0 = 12

O : 3 x 16 = 48

• Adding above values i.e, 46 + 12 + 48 = 106
• Hence, the molar mass of Na₂CO₃ is 106 g/mole.