Question

2 Na2O + CO = Na2CO3 + Na

What mass of sodium carbonate is produced from 35.0 grams of sodium oxide?

Answer 1

Moles of Na_2O

• Given mass/Molar mass
• 35/62
• 0.56mol

2 mols Na_2O produces 1 mol sodium carbonate.

1 mol sodium oxide produces 0.5mol sodium carbonate

Moles of sodium carbonate

• 0.56(0.5)
• 0.28mol

Molar mass

• 2(23)+12+3(16)
• 46+12+48
• 106g/mol

Mass

• 0.28(106)
• 29.7g