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What is the main observation a student should note when adding powdered sodium hydrogen carbonate to ethanoic acid?
What is the main observation a student should note when adding powdered sodium hydrogen carbonate to ethanoic acid?
- Increase in temperature of the mixture
- Change in color to yellow
- Effervescence of a colorless and odorless gas (correct)
- Formation of a white precipitate
What is the correct chemical equation for the reaction between sodium hydrogen carbonate and ethanoic acid?
What is the correct chemical equation for the reaction between sodium hydrogen carbonate and ethanoic acid?
- $CH_3COOH + NaHCO_3 \rightarrow CH_3COOHNa + CO_2 + H_2O$
- $CH_3COOH + NaHCO_3 \rightarrow CH_3COONa + CO_2 + H_2O$ (correct)
- $CH_3COOH + NaHCO_3 \rightarrow NaCOOH + CO_2 + H_2O$
- $CH_3COOH + NaHCO_3 \rightarrow CH_3COO + CO_2 + H_2O$
What would happen if a student uses hydrochloric acid instead of ethanoic acid in the reaction with sodium hydrogen carbonate?
What would happen if a student uses hydrochloric acid instead of ethanoic acid in the reaction with sodium hydrogen carbonate?
- No reaction will occur
- Formation of a foul-smelling gas
- Release of a green-colored gas (correct)
- Production of a pink-colored solution
If a student mistakenly uses baking powder instead of sodium hydrogen carbonate, what would be the likely outcome?
If a student mistakenly uses baking powder instead of sodium hydrogen carbonate, what would be the likely outcome?
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What effect would decreasing the amount of powdered sodium hydrogen carbonate have on the reaction with ethanoic acid?
What effect would decreasing the amount of powdered sodium hydrogen carbonate have on the reaction with ethanoic acid?
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