11-30. This problem deals with the amino acid cysteine, which we will abbreviate H,C. (a) A...

 

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11-30. This problem deals with the amino acid cysteine, which we will abbreviate H,C. (a) A 0.030 0 M solution was prepared by dissolving dipotassium cysteine, K,C, in water. Then 40.0 mL of this solution were titrated with 0.060 0 M HCIO,. Calculate the pH at the first equivalence point. (b) Calculate the quotient [C /[HC ] in a solution of 0.0500M cysteinium bromide (the salt HC*Br). 11-30. This problem deals with the amino acid cysteine, which we will abbreviate H,C. (a) A 0.030 0 M solution was prepared by dissolving dipotassium cysteine, K,C, in water. Then 40.0 mL of this solution were titrated with 0.060 0 M HCIO,. Calculate the pH at the first equivalence point. (b) Calculate the quotient [C /[HC ] in a solution of 0.0500M cysteinium bromide (the salt HC*Br).

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A K2C HClO4 2K HC ClO4 K2C HClO4 2K HC ClO4 Moles of HC for... View the full answer