How do you calculate the molar mass of sodium carbonate (Na₂CO₃)?

[sumit]

I'm trying to calculate the molar mass of sodium carbonate (Na₂CO₃), but I'm unsure how to add up the atomic masses correctly. Can someone walk me through the steps?

 

[Salvatore_Damon]

To calculate the molar mass of sodium carbonate (Na₂CO₃), add up the atomic masses of all its atoms:

• Sodium (Na): 22.99 × 2 = 45.98 g/mol
• Carbon (C): 12.01 × 1 = 12.01 g/mol
• Oxygen (O): 16.00 × 3 = 48.00 g/mol

Now add them together:
45.98 + 12.01 + 48.00 = 105.99 g/mol

So, the molar mass of sodium carbonate is about 106 g/mol.

 

[jarwish]

To calculate the molar mass of sodium carbonate (Na₂CO₃), add the atomic masses of all atoms:
2(Na) + 1(C) + 3(O) = 2(22.99) + 12.01 + 3(16.00) = 45.98 + 12.01 + 48.00 = 105.99 g/mol (≈106 g/mol).