CH-763
The mole
Chemistry · Secondary 3 · Easy · The mole
A student heats 5.3 g of sodium carbonate, Na₂CO₃, until it decomposes completely to form sodium oxide and carbon dioxide.
Relative formula mass of Na₂CO₃ = 106.
How many moles of Na₂CO₃ are heated?
Relative formula mass of Na₂CO₃ = 106.
How many moles of Na₂CO₃ are heated?
- 0.050 mol
- 0.20 mol
- 0.0050 mol
- 20 mol
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