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Sulfuric acid (H₂SO₄) and nitric acid (HNO₃) are both strong acids - VCE - SSCE Chemistry - Question 5 - 2006 - Paper 1
Question 5
Sulfuric acid (H₂SO₄) and nitric acid (HNO₃) are both strong acids. Ethanoic acid (CH₃COOH) is a weak acid. 20.00 mL solutions of 0.10 M concentration of each of the... show full transcript
Worked Solution & Example Answer:Sulfuric acid (H₂SO₄) and nitric acid (HNO₃) are both strong acids - VCE - SSCE Chemistry - Question 5 - 2006 - Paper 1
Step 1
Step 2
B. HNO₃ would require more NaOH than CH₃COOH but less than H₂SO₄.
Answer
This statement is not accurate. While HNO₃ would indeed require more NaOH than CH₃COOH due to its strength, it does not necessarily require less than H₂SO₄, as both H₂SO₄ and HNO₃ behave similarly in terms of strong acid behavior.
Step 3
C. H₂SO₄ and HNO₃ would require the same amount of NaOH but CH₃COOH would require less.
Answer
This statement holds true as both H₂SO₄ and HNO₃ are strong acids that fully dissociate, thus requiring the same amount of NaOH. CH₃COOH, as a weak acid, will require significantly less NaOH for neutralization.
Step 4
D. CH₃COOH and HNO₃ would require the same amount of NaOH but H₂SO₄ would require more.
Answer
This statement is incorrect. CH₃COOH and HNO₃ will not require the same amount of NaOH since CH₃COOH is a weak acid. H₂SO₄, being a strong diprotic acid, will require more NaOH compared to both CH₃COOH and HNO₃.