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A beaker is filled with 225.0mL of sodium hydroxide solution with an unknown concentration. A 0.00100 M solution of HCI is used in the titration. the equivalence point is reached when 27.0mL of HCI have been added.What is the initial concentration of NaOH in the beaker

Respuesta :

The titration formula is used when we have an equivalence point of neutralization between acid and base, the formula is:

Ma * Va = Vb * Mb

Where:

Ma = concentration of acid

Va = volume of acid

Mb = concentration of base

Vb = volume of base

This formula tells us the concentration and volume of an acid must be equal to the concentration and volume of a base in order to neutralize the reaction (this applies to strong acids and strong bases only)

Ma * Va = Vb * Mb

0.00100 * 27 = 225 * Mb

0.027 = 225Mb

Mb = 0.00012M

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