K, is acid association constant, large PK,, value for an acid indicates that acid is:
Correct answer: B. weak
- A. Strong
- B. weak
- C. moderate
- D. water soluble
Explanation
if KA is smaller than pKA is large which means weak acid
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About pH and pOH
pH measures hydrogen ion concentration and pOH measures hydroxide ion concentration on a logarithmic scale. Calculations use pH = minus log of hydrogen ion concentration, pOH = minus log of hydroxide ion concentration and pH plus pOH equals pKw, with separate treatment of strong and weak acids and bases.
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