Question 6

Learners made a mini volcano in a science laboratory by adding sodium bicarbonate to
ethanoic acid. They added 100 mℓ of a 0,2 mol.

dm^-3 ethanoic acid solution to 10 g of

NaHCO₃ to start the reaction of the volcano.
The balanced equation for this reaction is:

CH₃COOH(aq) + NaHCO₃(s) → CH₃COONa(aq) + H₂O(l) + CO₂(g)

6.1 Define the term limiting reagent. (2)

6.2 Determine the limiting reagent in this reaction. (6)

6.3 Calculate the mass of the other substance in excess. (3)

6.4 Calculate the volume of CO₂ produced at STP. (4)
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