consider the titration of 0.001 M Zn^+2 with 0.00100 M EDTA in a 0.500 M ammonia_ammonium buffer at pH 5 ,9?

Question

1) Detrmine [NH3] at pH 5 and 9

2)Determine the buffer strength of the amonia-ammonium buffer at pH 5 and 9
3) Determine alpha M ,the fraction of the total zinc present as Zn^+2 at pH 5 and 9
4)Determine alpha4 ,the fraction of the total EDTA present as Y^-4 at pH 5 and 9
5)Determine pZn at fraction titrated f=0(before any EDTA has been added) at pH 5.0 and 9

Answer 1

http://www.carlton.srsd119.ca/chemical/equilibrium/acidbase1.htm

THIS NEEDS TO BE DONE IN THE LAB!

Titration is the progressive addition of measured volumes of a solution of known concentration to an unknown substance. The reaction reaches an observable endpoint, where the amount of unknown is calculated from the volume and concentration. In an acid-base titration the chemical relationship is that 1 mole of H3O+ can neutralize 1 mole of OH-, and acid-base indicator dyes are often used to detect the endpoint.