A titration is performed by adding .435M KOH to 80ml of .205M HC3H5O2. A) Calculate the pH...

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Chemistry

A titration is performed by adding .435M KOH to 80ml of .205MHC3H5O2.

A) Calculate the pH before the addition of any KOH?

B) Calculate the pH after the addition of 7.54ml of KOH?

C) Calculate the volume of base needed to reach the equivalencepoint?

D) Enter the pH of the solution at the equivalence point of thetitration?

Answer & Explanation Solved by verified expert
3.9 Ratings (429 Votes)
M1 0435 KOG V2 80 ml M2 0205 M HC3H5O2 From internet database Ka 13105 There is an equilibrium HAc H and Ac Ka HAc HAc a when there is no base pH logH Calculate H H Ac x 1 mol of H is free when 1 mol of Ac is also free in equilibrium Substitute in Ka Ka HAc HAc 13105 x2 0205 x Solve for x x 00016 or 00016 choose positive since    See Answer
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