Question
In: Chemistry
A buffer solution contains 0.14 mol of ascorbic acid (HC6H7O6) and 0.84 mol of sodium ascorbate...
A buffer solution contains 0.14 mol of ascorbic acid
(HC6H7O6) and 0.84 mol of sodium
ascorbate (NaC6H7O6) in 2.80
L.
The Ka of ascorbic acid
(HC6H7O6) is Ka =
8e-05.
(a) What is the pH of this buffer?
pH =
(b) What is the pH of the buffer after the addition of 0.07 mol of
NaOH? (assume no volume change)
pH =
(c) What is the pH of the original buffer after the addition of
0.21 mol of HI? (assume no volume change)
pH =
Solutions
queen_honey_blossom answered 2 hours agoRelated Solutions
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A buffer solution contains 0.33 mol of hypoiodous acid (HIO) and
0.75 mol of sodium hypoiodite (NaIO) in 4.50 L.
The Ka of hypoiodous acid (HIO) is Ka =
2.3e-11.
(a) What is the pH of this buffer?
pH =
(b) What is the pH of the buffer after the addition of 0.26 mol of
NaOH? (assume no volume change)
pH =
(c) What is the pH of the original buffer after the addition of
0.08 mol of HI? (assume...
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A buffer solution contains 0.72 mol of hydrosulfuric acid (H2S)
and 0.70 mol of sodium hydrogen sulfide (NaHS) in 8.60 L. The Ka of
hydrosulfuric acid (H2S) is Ka = 9.5e-08.
(a) What is the pH of this buffer?
pH =
(b) What is the pH of the buffer after the addition of 0.17 mol
of NaOH? (assume no volume change)
pH =
(c) What is the pH of the original buffer after the addition of
0.53 mol of HI?...
A buffer contains 0.17 mol of propionic acid (C2H5COOH) and 0.21 mol of sodium propionate (C2H5COONa)...
A buffer contains 0.17 mol of propionic acid
(C2H5COOH) and 0.21 mol of sodium propionate (C2H5COONa) in 1.20
L.
Part A
What is the pH of this buffer?
Part B
What is the pH of the buffer after the addition of 0.02 mol of
NaOH?
Part C
What is the pH of the buffer after the addition of 0.02 mol of
HI?
A buffer contains 0.10 mol of propionic acid (C2H5COOH) and 0.19 mol of sodium propionate (C2H5COONa)...
A buffer contains 0.10 mol of propionic acid (C2H5COOH) and 0.19
mol of sodium propionate (C2H5COONa) in 1.20 L.
Part A. What is the pH of this buffer?
Part B. What is the pH of the buffer after the addition of 0.02
mol of NaOH?
Part C. What is the pH of the buffer after the addition of 0.02
mol of HI?
A buffer contains 0.11 mol of propionic acid (C2H5COOH) and 0.17 mol of sodium propionate (C2H5COONa)...
A buffer contains 0.11 mol of propionic acid (C2H5COOH) and 0.17
mol of sodium propionate (C2H5COONa) in 1.20 L. What is the pH of
this buffer?
What is the pH of the buffer after the addition of 0.02 mol of
NaOH?
What is the pH of the buffer after the addition of 0.02 mol of
HI?
A buffer solution contains 0.29 mol of phenol (HC6H5O) and 0.75 mol of sodium phenoxide (NaC6H5O)...
A buffer solution contains 0.29 mol of phenol
(HC6H5O) and 0.75 mol of sodium phenoxide
(NaC6H5O) in 5.20 L.
The Ka of phenol (HC6H5O) is
Ka = 1.3e-10.
(a) What is the pH of this buffer?
pH = ?????????????
(b) What is the pH of the buffer after the addition of 0.06 mol of
NaOH? (assume no volume change)
pH = ????????????
(c) What is the pH of the original buffer after the addition of
0.59 mol of HI? (assume...
What is the pH of a buffer solution that contains 0.350M pyruvic acid and 0.150M sodium...
What is the pH of a buffer solution that contains 0.350M pyruvic
acid and 0.150M sodium pyruvate? Ka = 4.1x10^-3
Select one:
A. 4.72
B. 2.82
C. 2.02
D. 2.76
What is the pH of a 100.0mL buffer solution that contains 0.215M
acetic acid and 0.255M sodium acetate after 0.055 mmol HCl is
added. Assume no volume change. Ka = 1.8x10^-5.
Select one:
A. 4.61
B. 4.87
C. 5.03
D. 5.48
Calculate the change in pH after 0.010
mole HCl...
A buffer was prepared by adding 1.00 mol of formic acid and 1.00 mol of sodium...
A buffer was prepared by adding 1.00 mol of formic acid and 1.00
mol of sodium formate to 1.00 L of distilled water. A 100.0 mL
aliquot of 1.00 M HCl is then added. What is the pH of the
resulting buffer solution? (Formic acid pKa=3.74)
2. A buffer solution contains .120 M acetic acid and .150 M sodium acetate. (a) how...
2. A buffer solution contains .120 M acetic acid and .150 M
sodium acetate.
(a) how many moles of each component are in 50.0 mL of
solution?
(b) If you add 5.55 mL of .092 M NaOH to the solution in part
(a), how many moles of acetic acid, sodium acetate, and NaOH will
be present after the reaction?
(c) If you add .50 mL of .087 M HCl to the solution in part (a)
how many moles of acetic...
2. A buffer solution contains .120 M acetic acid and .150 M sodium acetate. (a) how...
2. A buffer solution contains .120 M acetic acid and .150 M
sodium acetate.
(a) how many moles of each component are in 50.0 mL of
solution?
(b) If you add 5.55 mL of .092 M NaOH to the solution in part
(a), how many moles of acetic acid, sodium acetate, and NaOH will
be present after the reaction?
(c) If you add .50 mL of .087 M HCl to the solution in part (a)
how many moles of acetic...
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