Answer:
40%
Explanation:
Calculate the percent of the mass that is carbon:

Answer:
Sodium oxide is the product
Explanation:
4Na+O2->2Na2O
Moles of Li2CO3 = 1.53/73.891 = 0.0207 mole
Since HCl is in excess, amount of CO2 will depend on the limiting reagent which is Li2CO3.
∴Moles of CO2 = Moles of Li2CO3 = 0.0207.
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