CHEM 112 Lecture Notes - Lecture 26: Sodium Hydroxide, Sodium Fluoride, Potassium Nitrite

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12 Apr 2016
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Titration definitions: midpoint also known as the equivalence half-point; the middle of the first endpoint and the equivalence point, by volume, equivalance point the point were moles of solution are equal to moles of titrant. Titrating a weak acid with a strong base: 100 ml of 0. 100m acetic acid is titrated with 0. 100 m naoh. Calculate the ph when 35 ml of the base is added: write the reaction. Oh- + ch3cooh ch3coo- + h2o. If they were not the same, then you would have to use the m1v1 = m2v2 equation: see the table below. 0. 01: now do a second table with the concentrations. Titrating a weak base with a strong acid: there is still a buffer region in which the ph changes slowly! Question: a titration needs to be done to determine the exact acid concentration in an unknown solution. It is estimated that the hydronium concentration in the solution is around 2. 75 x 10-6.

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