An unknown sample of 0.1687 g of Il-positive asset was dissolved in 25.0 mL of water and titrated with 0.1150 M NaOH. 15.5 mL of base is required for the acid to reach the equivalent point. (a) What is the molar mass of acid? (b) After adding 7.25 mL of base when titrated, it was found that the pH was 2.85. What is the value of Ka in acid?

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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.