Chemistry Practice Problems Strong Acid-Base Calculations Practice Problems Solution: Determine the pH of a 0.00598 M HClO 4 solution.A)...

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Solution: Determine the pH of a 0.00598 M HClO 4 solution.A) 11.777B) 6.434C) 7.566D) 2.223E) 3.558

Problem

Determine the pH of a 0.00598 M HClO 4 solution.

A) 11.777

B) 6.434

C) 7.566

D) 2.223

E) 3.558

Solution

Remember that HClO4 is a strong, monoprotic oxyacid. It’s a strong oxyacid since there are 3 more O than H in the formula. 


Recall that strong acids completely dissociate in water and that acids donate H+ to the base (water in this case). The dissociation of HClO4 is as follows:


HClO4(aq) + H2O(l)  H3O+(aq) + ClO4(aq)


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