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H2SO4 is added to a large beaker of water. How is the solution different from the original water? A) The solution turns blue litmus to red. B) The solution turns phenolphthalein pink. C) The solution has fewer hydrogen ions. D) The solution has more hydroxide ions.

Victoria Fowler

in Chemistry

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James Washington on April 25, 2018

The answer is: (A) The solution turns blue litmus red. Sulfuric acid (H₂SO₄) is a strong acid, that is to say, that the solution of sulfuric acid is more acidic (pH<7) water (pH = 7).The chemical dissociation of sulfuric acid in water: H₂SO₄(aq) → 2 H⁺(aq) + SO₄2⁻(aq). When the solution turns phenolphthalein pink, it means that it is basic (pH>7).The sulphuric acid has more hydrogen ions (H⁺) and less hydroxide ions (OH⁻) of water.


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