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) Sulfuric... 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
A) Acetic acid and barium hydroxide
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Answer
Acetic acid is a weak acid, and barium hydroxide is a strong base. Mixing these will produce acetate ions and barium ions, leading to a basic solution.
Step 2
B) Acetic acid and sodium carbonate
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Answer
Sodium carbonate is a weak base. Combining this with acetic acid will yield carbonic acid and acetate ions, resulting in a less basic solution compared to option A.
Step 3
C) Sulfuric acid and barium hydroxide
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Answer
Sulfuric acid is a strong acid while barium hydroxide, being a strong base, will completely neutralize the acid. This can produce a very basic solution depending on the amounts used.
Step 4
D) Sulfuric acid and sodium carbonate
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Answer
In this case, sulfuric acid will react with sodium carbonate to produce sodium sulfate, carbon dioxide, and water. The resulting solution is less basic compared to option C.
Step 5
Conclusion
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Answer
The combination that produces the most basic mixture is option (A) Acetic acid and barium hydroxide due to the strong basicity of barium hydroxide when neutralizing the weak acid.
