Neco 2020 Chemistry Question 4
Practice objective / multiple choice question 4 from the 2020 Neco Chemistry examination.
In acidic solution, potassium dichromate reacts with sodium sulfite according to the net ionic equation: \(Cr_{2}O_{7}^{2-} + 3SO_{3}^{2-} + 8H^{+} \rightarrow 2Cr^{3+} + 3SO_{4}^{2-} + 4H_{2}O\). If 25.0 mL of 0.150 M K₂Cr₂O₇ is mixed with excess Na₂SO₃, calculate the volume of 0.200 M H₂SO₄ required to provide the necessary \(H^{+}\) ions for complete reaction.
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About This Question
This is Neco 2020 Chemistry Question 4. It is one of the objective questions from the 2020 Neco Chemistry examination.
Difficulty level: Hard .
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