Which combination of equimolar solutions would produce the most basic mixture?
(A) Acetic acid and barium hydroxide
(B) Acetic acid and sodium carbonate
(C) Sulfuric acid and barium hydroxide
(D) Sulfuric acid and sodium carbonate - HSC - SSCE Chemistry - Question 6 - 2016 - Paper 1
Question 6
Which combination of equimolar solutions would produce the most basic mixture?
(A) Acetic acid and barium hydroxide
(B) Acetic acid and sodium carbonate
(C) Sulfuri... show full transcript
Worked Solution & Example Answer:Which combination of equimolar solutions would produce the most basic mixture?
(A) Acetic acid and barium hydroxide
(B) Acetic acid and sodium carbonate
(C) Sulfuric acid and barium hydroxide
(D) Sulfuric acid and sodium carbonate - HSC - SSCE Chemistry - Question 6 - 2016 - Paper 1
Step 1
Acetic acid and barium hydroxide
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Answer
Acetic acid (a weak acid) mixed with barium hydroxide (a strong base) will result in a reaction that typically produces a salt and water. The strong base barium hydroxide will dominate, leading to a basic solution.
Step 2
Acetic acid and sodium carbonate
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Answer
Sodium carbonate is a weak base and its reaction with acetic acid will also form a salt and water, but the resulting solution will not be as basic as that formed with barium hydroxide.
Step 3
Sulfuric acid and barium hydroxide
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Answer
Sulfuric acid is a strong acid and barium hydroxide is a strong base. The reaction will be complete, resulting in a neutralization reaction but will not produce as basic a solution as the combination with acetic acid.
Step 4
Sulfuric acid and sodium carbonate
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Answer
Sodium carbonate being a weaker base mixed with sulfuric acid will lead to some basicity, but the overall mixture will be less basic compared to that of acetic acid and barium hydroxide.
Step 5
Conclusion
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Answer
The combination of acetic acid and barium hydroxide (Option A) produces the most basic mixture due to the strong base present, which dominates the solution.
