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A 1.00 liter solution contains 0.33 M hypochlorous acid and 0.25 M sodium hypochlorite. If 35.0...

A 1.00 liter solution contains 0.33 M hypochlorous acid and 0.25 M sodium hypochlorite. If 35.0 mL of water are added to this system, indicate whether the following statements are true or false. (Note the the volume MUST CHANGE upon the addition of water.) A. The concentration of HClO will increase. B. The concentration of ClO- will increase. C. The equilibrium concentration of H3O+ will decrease. D. The pH will decrease. E. The ratio of [HClO] / [ClO-] will remain the same.

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Answer #1

If 35.0 mL of water are added to this system then the volume is changed.

pH = pKa + log( [ClO-]/[HClO] )

A.The concentration of HClO will increase. =>False,because with increase in volume concentration decreases.

B.The concentration of ClO- will increase. => False,because with increase in volume concentration decreases.

C.The equilibrium concentration of H3O+ will decrease. => False.

D. The pH will decrease. => False.

E. The ratio of [HClO] / [ClO-] will remain the same. True

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