Question
In: Chemistry
A buffer contains 0.150M acetic acid and 0.105M in sodium acetate. a) Calculate the pH of...
A buffer contains 0.150M acetic acid and 0.105M in sodium acetate.
a) Calculate the pH of the buffer.
b) What is the volume of 6.0M NaOH must be added to raise the pH of 100.0 mL of the buffer by 1.5 pH units?
c) Calculate the pH when 2.0 mL of 6.0M is added to 100.0 mL to the buffer.
please show work. question is due before 11PM
Solutions
queen_honey_blossom answered 1 year agoRelated Solutions
Preparation of the acetic acid-sodium acetate buffer: Calculate the theoretical pH of this buffer solution. 3.504...
Preparation of the acetic acid-sodium acetate buffer:
Calculate the theoretical pH of this buffer
solution.
3.504 grams of
NaC2H3O2*3H2O with 8.8
mL of 3.0 M acetic acid and 55.6 mL of distilled water.
Experimental pH of buffer solution: 4.8
11- The pH of a sodium acetate-acetic acid buffer is 4.70. Calculate the ratio [CH3COO−] /...
11- The pH of a sodium acetate-acetic acid buffer is 4.70.
Calculate the ratio [CH3COO−] / [CH3COOH].
1- Calculate the pH of a 0.20 M NH3/0.20 M NH4Cl buffer after the
addition of 25.0 mL of 0.10 M HCl to 65.0 mL of the buffer.
A- Enter your answer in the provided box.
A 21.0−mL solution of 0.110 M CH3COOH is titrated with a 0.240 M
KOH solution. Calculate the pH after the following additions of the
KOH solution:
(a)...
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...
Prepare 1 L of an acetic acid sodium acetate buffer with a pH of 5.00 and...
Prepare 1 L of an acetic acid sodium acetate buffer with a pH of
5.00 and a buffer concentration of 100 mM. Besides water you only
have a 500g bottle of sodium acetate trihydrate, 1L of 1.00
hydrochloric acid, and 1L of 1.00 M sodium hydroxide.
A. Identify the reagents needed and calculate all amounts
needed.
B. Calculate the change in pH of a 250 mL portion of the buffer
that has 1 mL of 1.00 M NaOH added to...
A buffer solution is 0.20 M in acetic acid and sodium acetate. Calculate the change in...
A buffer solution is 0.20 M in acetic acid and sodium acetate.
Calculate the change in pH upon adding 1.0mL of 0.10 M HCL to 10mL
of this solution.
3. a) Calculate the pH of a sodium acetate-acetic acid buffer solution (Ka= 1.78 x 10-5)...
3. a) Calculate the pH of a sodium acetate-acetic acid
buffer solution (Ka= 1.78 x 10-5) in
which the concentration of both components is 1.0 M. What would be
the pH of the
solution if 1.5 mL of 0.50 M NaOH was added to 35.0 mL of the
buffer? How much
does the pH change?
b) If the same amount and concentration of NaOH was
added to 35.0 mL of pure water
(initial pH = 7), what would be the...
10. What is the [CH3COOH ]/[CH3COO– ] ratio in an acetic acid/sodium acetate buffer at pH...
10. What is the [CH3COOH ]/[CH3COO– ] ratio in an acetic
acid/sodium acetate buffer at pH = 4.90? (Ka = 1.8 x 10–5 )
a. 0.31
b. 0.70
c. 1.45
d. 2.41
e. 4.90
11. How many grams of NaCH3COO should be added to 250 mL of
0,100 M CH3COOH when the above solution is prepared?
a. 0.431 g
b. 2.95 g
c. 5.66 g
d. 1.43 g
e.11.9 g
Question 1 Calculate the concentrations of acetic acid and sodium acetate in the buffer solution you...
Question 1
Calculate the concentrations of acetic acid and sodium acetate
in the buffer solution you will prepare in this experiment:
Acetic acid concentration is Blank .01 M (2 dec places)
Sodium acetate concentration is Blank .01 M (2 dec places)
The theoretical pH of this buffer solution is (hint: use
Henderson-Hasselbach) is 4.74 (2 dec places).
Question 2
Which reaction occurs when you add NaOH to the buffer solution?
(Ac = acetate)
a.
OH- +
H3O+ ↔ 2 H2O...
Question 1 Calculate the concentrations of acetic acid and sodium acetate in the buffer solution you...
Question 1
Calculate the concentrations of acetic acid and sodium acetate
in the buffer solution you will prepare in this experiment:
Acetic acid concentration is Blank .01 M (2 dec places)
Sodium acetate concentration is Blank .01 M (2 dec places)
The theoretical pH of this buffer solution is (hint: use
Henderson-Hasselbach) is 4.74 (2 dec places).
Question 2
Which reaction occurs when you add NaOH to the buffer solution?
(Ac = acetate)
a.
OH- +
H3O+ ↔ 2 H2O...
A buffer soln contains 0.1M CH3COOH and 0.1M sodium acetate buffer. Calculate the pH after the...
A buffer soln contains 0.1M CH3COOH and 0.1M sodium
acetate buffer. Calculate the pH after the addition of 4.0 mL of
0.025 M HCl to 10 mL of the buffer. The pKa for acetic acid is
4.74/
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