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What is the approximate pH at the equivalence point of a weak acid-strong base titration if 25 mL of aqueous hydrofluoric acid requires 30.00 mL of 0.400 M NaOH? Ka = 6.76 × 10^-4 for HF.

8.10

8.25

9.60

10.80

Calculate the molarity of a hydrofluoric acid, HF, solution if 50.0 ml of the solution is neutralized by 18.5 mL of 0.400 M NaOH.

calculate the molarity of an HCI solution if 26.4 mL of the solution neutralizes 30.0 mL of a 0.120 molar solution of Ba(OH)2

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