What is the pH of an 0.07 M solution of Tris (2-amino-2-(hydroxymethyl)propane-1,3-diol), Ka = 8.51 x 10-9 M)?
2 decimal places.
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What is the pH of an 0.07 M solution of Tris (2-amino-2-(hydroxymethyl)propane-1,3-diol), Ka = 8.51 x...
What is the pH of a solution containing 0.3 M Tris(hydroxymethyl)amino-methane (free base) and 0.2 M Tris hydrochloride? pka = 8.1
Part A Tris[tris(hydroxymethyl)aminomethane] is a common buffer for studying biological systems. (Ka = 5.01 × 10−9 and pKa = 8.3) (a) Calculate the pH of the Tris buffer after mixing 13.5 mL of 0.15 M HCl solution with 25.0 mL of 0.10 M Tris. (b) This buffer was used to study an enzyme-catalyzed reaction. As a result of the reaction, 0.00017 mol of H+ was produced. What is the pH of the buffer at the end of the reaction? (c)...
1. Which acid and its conjugate base would be the best buffer at pH=4.7? 4‑(2‑hydroxyethyl)piperazine‑1‑ethanesulfonic acid (HEPES); ?a=3.2×10−8 4‑morpholineethanesulfonic acid (MES); ?a=7.9×10−7 2‑amino‑2‑hydroxymethyl‑propane‑1,3‑diol (Tris); ?a=6.3×10−9 acetic acid; ?a=1.8×10−5 formic acid; ?a=1.8×10−4
An enzyme-catalyzed reaction is carried out in a solution containing 0.2 M tris((hydroxymethyl)aminomethane (known as Tris, pK, 8.1). Shown below is the chemical structure in its protonated form. *NH, HOCH, C- CH, OH CHLOH The pH of the reaction mixture at the start is 7.8. As a result of the reaction, 0.033 moles/liter of His consumed. What will be the ratio of Tris (free base) to Tris (protonated form) at the beginning of the reaction? A B. C. D. 5:1....
Determine the Ka value for an acid where a 0.07 M solution has a measured pH of 2.85. Enter your answer as a decimal with one significant figure. (e.g. 0.00030
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