2) The indicator Haln has Ka = 4.5 x 105, Kaz = 4.5 x 10°. H,ln is red, HIn' is blue, In2 is yellow. a) What color is this indicator in a solution whose pH is 9.0? b) What color is this indicator in a solution whose pH is 5.75?

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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.