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In my Biochemistry lab this week we made buffer solutions. I had TRIS. I made 100ml of .1M solutions. The original ph was 9.15. I added HCl until ph matched the listed pka of 8.3. weight of TRIS is 1.235g.
(a) what is the ratio of A- / HA in your buffer are present in the solution?
(b) How many micromoles of A- and HA are present in the solution?
(c) If you now add 3ml of 1M NaOH, will you still have a valid buffer? Explain.
Calculate the theoretical ph of one of your buffer at 0^0 C. Assume that room temperature is 22^0 C. If none of your buffer is listed on the table of changing pka with temperature, do this problem for TRIS at ph 8.0.
Show all the steps in the mechanism for the following reaction, When benzene is mixed with deuterated sulfuric acid, deuterium is slowly incorporated onto the ring. Show the mechanism for this reaction and explain how this relates the sulfonation of ..
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