In a mixture there is Lithium carbonate and Sodium nitrate. When 51.68 this mixture was heated until a constant mass was achieved. The mass I was 16.76g. Calculate (Li = 7, C = 12, N = 14, Na = 23)

(i) Mass of Lithium carbonate and Sodium nitrate.

(ii) Moles of carbon dioxide and oxygen gas produced.

Note: L*i_{2}*C*O_{3} -> L*i_{2}*O + C*O_{2} NaNO,

NaNO2+O2