Q25 of 203 Page 172

What is the mass of 5 moles of sodium carbonate (Na2CO3)?

(Atomic masses: Na = 23 u; C = 12 u; O = 16 u)

Molar mass of sodium carbonate (Na2CO3) = 2×23+12+3×16 = 106 g

Mass of one mole of sodium carbonate (Na2CO3) = 106g


Mass of five moles of sodium carbonate (Na2CO3) = 5×106g = 530g.


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