Question

Biochemistry Prep for group work 2 summer 2019 Problem 2: a.)what is the charge on lysine at pH 10.92 Draw the form(s) at this pH b.)You are trying to make a Tris buffer that has a pH of 7.2, Tris has a pKa of 6.9. and you have already added 0.5 M of the Tris acid. What concentration of the Tris base is needed to make this buffer? c.)draw the titration curve for histidine and draw the form(s) of histidine that have the following charges: +2, +1.5,+1, +0.5, 0,-0.5 and -1 d.JYou mixed 0.600 M of the acid form of HEPES with 0.400 M of the base form of HEPES which has a pkKa of 7.3. What is the pH of the solution? e.Jdraw the forms of cys that have the following charges: -0.4,-1.6, +0.42

Answer 1

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