Question

a) If 6.3g of sodium carbonate are added to 15g of acetic acid solution, the residue is found to
weigh 18g. What is the mass of carbon dioxide released in the reaction?​

Answer 1

1. Mass of NaCO2 = 6.3 kg
2. mass of acetic acid(aq) = 15 kg
3. residue = 18g [•.• 18 * 0.123 ]

Explanation:

Mass of carbon dioxide = 15+6.3 - 2.224

= 21.3 - 2.224

= 23.52