The amount of I, (aq) in a solution can be determined by titration with a solution containing a known concentration of S₂O3(aq) (thiosulfate ion). The determination is based on the net ionic equation 2S₂O3(aq) + (aq) → SO2 (aq) +31 (aq) Given that it requires 31.9 mL of 0.210 M Na₂S₂O, (aq) to titrate a 10.0 mL sample of 15 (aq), calculate the molarity of 15 (aq) in the solution. (5)= x10 TOOLS M

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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.