Answer: Tris(hydroxymethyl)aminomethane, commonly called
Chapter 15, Problem 15.105(choose chapter or problem)
Tris(hydroxymethyl)aminomethane, commonly called TRIS or Trizma, is often used as a buffer in biochemical studies. Its buffering range is pH 7 to 9, and Kb is 1.19 3 1026 for the aqueous reaction 1HOCH22 3CNH2 1 H2Om1HOCH22 3CNH3 1 1 OH2 TRIS TRISH1 a. What is the optimal pH for TRIS buffers? b. Calculate the ratio [TRIS]y[TRISH1] at pH 5 7.00 and at pH 5 9.00. c. A buffer is prepared by diluting 50.0 g TRIS base and 65.0 g TRIS hydrochloride (written as TRISHCl) to a total volume of 2.0 L. What is the pH of this buffer? What is the pH after 0.50 mL of 12 M HCl is added to a 200.0-mL portion of the buffer?
Unfortunately, we don't have that question answered yet. But you can get it answered in just 5 hours by Logging in or Becoming a subscriber.
Becoming a subscriber
Or look for another answer