If the pH of the solution is greater than the pKa, the predominant species in the...
HA, pka = 6.2 0.10 M NaA pH of the solution needed to be adjusted in order to achieve the ratio of deprotonated to protonated species? [A-]/[HA] = 106
what are the correct answers? Question 4 (1 point) Saved How many equivalents of NaOH base would you expect to add to phosphoric acid when adjusting the pH to 6.82 ? Hint: pKa values are in the notes 0.5 1.5 2.5 o 1.0 2.0 Question 6 (1 point) Citric acid is a triprotic acid with three carboxylic acid groups having pK,values of 3.1,4.8, and 64. If a solution of citric acid has a predominantly means greater then 50% pH of...
An acid with a pka of 5.3 is present in solution with a pH of 6.5. What is the ratio of protonated to deprotonated form of the acid?
What is the pI of glutamate? pK1= 2.2 pK2=3.5 pKr=8.5 Rule: pH > pKa deprotonated, pH < pKa protonated
Can you please check my work? I am having difficulty in differentiating my answers from pH>pKa to pH<pKa. I do not understand how acids and bases would be different among each other in relation to pH and pKa. Guidance would be greatly appreciated. Thank you. D Question 5 8 pts pKa and pH pKa pH when the concentration of the protonated and deprotonated forms are the same. At a pH below the pKa, which form of a base will be...
X Question pH and pKa Unanswered In which solution will ethanol, with a pKa value of -2.4 for its positively charged, protonated state (CH3CH20H2+), be protonated? A pH -4.4 B pH 4.4 C pH 0.0 D pH -1.0 2 attempts left. Submit
What are the predominant forms of acetic acid (pKa is 4.8) at a pH of 2 and a pH of 7?
draw the predominant species of EDTA at pH 2.66
Draw the structure of the predominant form of CH3CH2NH3+ (pKa = 11.0) at pH = 6.
To indicate the pH of a substance, one can use a dye that is both an acid and that appears as different colors in its protonated and deprotonated forms. Suppose that you have a 0.001 M solution of a dye with a pKa of 7.2. From the color, the concentration of the protonated form, HA, is 0.0002 M.. Assume that the remainder of the dye is in the deprotonated form, .A−. What is the pH of the solution? Give your...