What would be the effect of working at pH 8 instead of pH 10 on the following; b

Question

What would be the effect of working at pH 8 instead of pH 10 on the following; be sure to specifically cite the difference in each case between pH 8 and pH 10:

a.    the value of 4 and the concentration of the active form of the EDTA. (Either compute these values or state where you found them with a bibliographic reference.

b. the conditional formation constant, Kf’ for Ca2+ with EDTA.

[Ca2+]free at the equivalence point. (Answer qualitatively.)

Please explain!!! I really want to understand the reasoning behind these answers

Explanation / Answer

a) 4 at pH 8 = 5.6x10-3 and at pH 10 = 0.36

https://www.google.com.sg/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&uact=8&ved=0ahUKEwjdwsjM28vLAhVEXBoKHWXTCzgQFggcMAA&url=http%3A%2F%2Fcheminnerweb.ukzn.ac.za%2Flibraries%2Fapch231_h_govender_s_notes%2Fapch231_edta.sflb.ashx&usg=AFQjCNFEYaTny0mKIITH4hFvU-UJwQXRQQ&sig2=U0VNw9GmNxi23-_vyFqN-g&bvm=bv.117218890,d.d2s

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