Question
In: Chemistry
A 250.0-mL buffer solution is 0.290 molL−1 in acetic acid and 0.290 molL−1 in sodium acetate....
A 250.0-mL buffer solution is 0.290 molL−1 in acetic acid and
0.290 molL−1 in sodium acetate.
Ka(CH3COOH)=1.8×10−5
Part A
What is the initial pH of this solution?
Express your answer using two decimal places.
Part B
What is the pH after addition of 0.0150 mol of HCl?
Express your answer using two decimal places.
Part C
What is the pH after addition of 0.0150 mol of NaOH?
Express your answer using two decimal places.
Solutions
queen_honey_blossom answered 1 year agoRelated Solutions
A 250.00 mL buffer solution is 0.250 M acetic acid (CH3COOH) and 0.100 M sodium acetate...
A 250.00 mL buffer solution is 0.250 M acetic acid (CH3COOH) and
0.100 M sodium acetate (NaCH3COO). The Ka of acetic acid is 1.8 •
10-5 at 25 o C. Calculate the pH of the resulting buffer solution
when 10.00 mL of a 0.500 M aqueous HCl solution is added to this
mixture.
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 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.
A 250mL buffer solution is 0.250M in acetic acid and 0.250M in sodium acetate. A) What...
A 250mL buffer solution is 0.250M in acetic acid and 0.250M in
sodium acetate.
A) What is the pH after the addition of 0.005 mol of HCl?
B) What is the pH after the addition of 0.005 mol of NaOH?
A 280.0mL buffer solution is 0.220M in acetic acid and 0.220M in sodium acetate. A. What...
A 280.0mL buffer solution is 0.220M in acetic acid and
0.220M in sodium acetate.
A. What is the initial pH of this solution?
B. What is the pH after addition of 0.0050mol of HCl?
C. What is the pH after addition of 0.0050mol of NaOH?
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
An acetic acid/ sodium acetate buffer solution similar to the one you made in the lab...
An acetic acid/ sodium acetate buffer solution similar to the
one you made in the lab was prepared using the following
components:
3.46 g of
NaC2H3O2∙3H2O (FW. 136
g/mol)
9.0 mL of 3.0 M HC2H3O2
55.0 mL of water
If you take half of this solution and add 2 mL of 1.00 M NaOH to
it, then what is the pH of this new solution?
A buffer solution that is 0.10 M sodium acetate and 0.20 M acetic acid is prepared....
A buffer solution that is 0.10 M sodium acetate and 0.20 M
acetic acid is prepared. Calculate the initial pH of this
solution.
The Ka for CH3COOH is 1.8 x 10-5 M. As usual, report pH to 2
decimal places.
A buffered solution resists a change in
pH.
Calculate the pH when 21.1 mL of 0.031 M HCl is added to 100.0 mL
of the above buffer.
An acetic acid/ sodium acetate buffer solution similar to the one you made in the lab...
An acetic acid/ sodium acetate buffer solution similar to the
one you made in the lab was prepared using the following
components: 3.46 g of NaC2H3O2∙3H2O (FW. 136 g/mol) 9.0 mL of 3.0 M
HC2H3O2 55.0 mL of water If you take half of this solution and add
2 mL of 1.00 M HCl to it, then what is the pH of this new
solution?
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