1. The conjugate base of a stong acid has no effect on the pH. Why or...

1. The conjugate base of a stong acid has no effect on the pH. Why or why not? Include a comment on the conjugate acid of a base.

2. Given the discussion of question one above, then if I were to dissolve the following salt, KNO₃, in water, what would the resulting pH be and why?

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Expert Solution

1. The conjugate base of a strong acid has no effect on the pH.

A strong acid is completely dissociated in aqueous solution.

This means that the following equilibrium almost completely remains in the reverse direction only.

In other words, the conjugate base of a strong acid is not hydrolyzed. Hence, it has no effect on pH.

The conjugate acid of a strong base has no effect on the pH.

A strong base is completely dissociated in aqueous solution.

This means that the following equilibrium almost completely remains in the reverse direction only.

In other words, the conjugate acid of a strong base is not hydrolyzed. Hence, it has no effect on pH.

If I were to dissolve the following salt, KNO3, in water, what would the resulting pH be 7.

KNO3 is a salt of strong acid HNO3 and strong base KOH. It is not hydrolyzed in water. Hence, the pH of the solution will be equal to the pH of water which will be 7.

queen_honey_blossom answered 1 year ago

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