An unknown weak acid with a concentration of 0.097 M has a pH of 1.80. What is the Ka of the weak acid?
Question
Solution 1
To find the Ka of the weak acid, we first need to find the concentration of H+ ions using the pH value. The formula to find the concentration of H+ ions is:
[H+] = 10^-pH
Substituting the given pH value:
[H+] = 10^-1.80 = 0.0158 M
Next, we use the formula for the ionization of a weak acid:
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