Question

Determine the ph of an hf solution of each of the following concentrations.

Answer 1

The pH shows the degree of acidity of alkalinity of a solution. The pH of the HF can be obtained from the ICE table.

What is pH?

The term pH refers to the hydrogen ion concentration of a solution. Recall that acids produce hydrogen or oxonium ion in solution.

The first step to determine the pH of the HF solution is to set up the ICE table as shown;

             HF + H2O  ⇄ H3O^+ + F^-

I

C

E

The values of the initial concentration of HF  as well as the Ka of HF are not given. If these two values are give, the pH can be obtained from;

Ka = [H3O^+] [ F^-]/[HF] Knowing that  [H3O^+] = [ F^-] = x

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