When titrated with a  0.1081 M   solution of sodium hydroxide, a 58.00 mL solution of an unknown polyprotic acid required 21.61 mL to reach the first equivalence point. Calculate the molar concentration of the unknown 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.