Calculate the pH when 21.0 mL of 0.200 M HBr is mixed with 30.0 mL of 0.400 M CH;NH2 (Kb = 4.4 x 10-4).

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Acid Base Titration

An acid-base titration is the method of quantitative analysis for determining the concentration of an acid and base by exactly neutralizing it with a standard solution of base or acid having known concentration.