If you wanted a ratio of conjugate base over fatty acid ([A-]/[HA]) of 100 in aqueous solution, what should you adjust the pH of the solution to?
If we want a ratio of conjugate base over fatty acid ([A-]/[HA]) of 100 in aqueous solution, we should adjust the pH of the solution to 7.4
If you wanted a ratio of conjugate base over fatty acid ([A-]/[HA]) of 100 in aqueous...
At what pH would an aqueous solution of benzoic acid be present as 99% conjugate base (benzoate)? (Hint: you will need to know the pKa of benzoic acid)? At what pH would an aqueous solution of m-nitroaniline be present as 99% conjugate acid (m-nitroanilinium, the protonated form)?
A solution contains 19 conjugate acid base pairs. One of these is piperazine and its conjugate acid with a [A-]/[HA] ration of 0.64. What is the pH of the solution? What can you say about the other 18 conjugate pairs?
A buffer containing 0.50 M of an acid (HA) and 0.10 M of its conjugate base (A–) has a pH of 10.30. Which of the following solutions will make a buffer with a pH of 11.30? A. A solution with [HA] = 0.25 M and [A–] = 0.10 M. B. A solution with [HA] = 0.50 M and [A–] = 0.50 M. C. A solution with [HA] = 0.10 M and [A–] = 0.50 M. D. A solution with [HA]...
Which concentration of a weak acid (HA) and its conjugate base (A-) will make a buffer solution whose pH value is equal to its pKa? (HA) = 0.05 M, (A-) = 0.07 M HA = 0.05 M, (A-) = 0.05 M more than one answer is correct HA = 0.05 M, (A-) = 0.01 M
You wish to make a buffer solution using an acid (HA) with a Ka of 8.90 x 10-6 and a salt of its conjugate base (NaA). If you start with 1.50 MHA and 2.25 M NaA: what is the hydronium concentration at equilibrium? concentration: what is the pH? pH:
QUESTION 17 You have a solution of an unknown acid and its conjugate base. The solution has a pH of 3.15 and the acid has a Kz of 1.2 x 10-4. What is the base-to-acid concentration ratio?
If the dissociation constant of a weak acid is 6.4 x 10, at what ratio should you adjust the concentration of the weak acid and its conjugate base in ord a) 0.0500 M weak acid with 0.100 M conjugate base b) 0.100 M weak acid with 0.0100 M conjugate base c)0.500 M weak acid with 0.500 M conjugate base d) 0.0500 M weak acid with 0.500 M conjugate base e) 0 200 M weak acid with 0.100 M conjugate base...
Which acid has the strongest conjugate base in aqueous solution?
I have the right answer but don't know why it's right and why
the rest are wrong. Thank you!
3. Which acid has the strongest conjugate base in aqueous solution? A) HF B) HNO3 C) HCIO4 D) HI E) H2SO4
hat is the ratio of [A^-]/ [HA] at pH 5.752? The pK_a of formic acid (methanoic acid, H-COOH) is 3.75. Number Draw the structure of HA for formic acid. Draw the structure of the conjugate base for formic acid.
Question 39 1 pts A weak acid (HA) reacts with a weak base (B) to form the conjugate base of the acid (A) and the conjugate acid of the base (B-H the pKa of HA was 4.8 and the pKa of BH* (i.e., the pKabH of B) was 9.4, what would be the value of the equilibrium constant for the above reaction to the nearest ones? Obviously, by expressing the answer to the nearest ones, we are using too many...