Question
In: Chemistry
A buffer contains 1.00 M CH_{3}CH_{2}COOH (propanoic acid) and 1.00 M NaCH_{3}CH_{2}COO (sodium propanoate). 0.010 M...
A buffer contains 1.00 M CH_{3}CH_{2}COOH (propanoic acid) and 1.00 M NaCH_{3}CH_{2}COO (sodium propanoate). 0.010 M HCl is added to the buffer. What is the solution pH after the HCl is added? (Assume no change in volume) For CH_{3}CH_{2}COOH K_{a} = 1.3 x 10^{-5}
Solutions
queen_honey_blossom answered 2 years agoRelated Solutions
A buffer consists of 0.91-M propanoic acid ( Ka= 1.4 × 10-5) and 0.76-M sodium propanoate....
A buffer consists of 0.91-M propanoic acid ( Ka= 1.4 ×
10-5) and 0.76-M sodium propanoate.
a) Calculate the pH of this buffer.
b)Calculate the pH after the addition of 1.2 mL of 0.10–M HCl to
0.010 L of the buffer.
c) Calculate the pH after the addition of 1.8 mL of 1.0–M HCl to
0.010 L of the buffer.
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...
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)
1. A 1.00 liter solution contains 0.38 M acetic acid and 0.49 M sodium acetate. If...
1. A 1.00 liter solution contains
0.38 M acetic acid and
0.49 M sodium acetate.
If 0.120 moles of calcium
hydroxide are added to this system, indicate whether the
following statements are true or false.
(Assume that the volume does not change upon the addition of
calcium hydroxide.)
A. The number of moles of
CH3COOH will remain the
same.
B. The number of moles of
CH3COO- will
decrease.
C. The equilibrium concentration of
H3O+ will decrease.
D. The pH will...
A 1.00 liter solution contains 0.24 M hypochlorous acid and 0.31 M sodium hypochlorite. If 0.160...
A 1.00 liter solution contains 0.24 M hypochlorous acid and 0.31
M sodium hypochlorite. If 0.160 moles of potassium hydroxide are
added to this system, indicate whether the following statements are
true or false. (Assume that the volume does not change upon the
addition of potassium hydroxide.) A. The number of moles of HClO
will decrease. B. The number of moles of ClO- will increase. C. The
equilibrium concentration of H3O+ will remain the same. D. The pH
will decrease....
A 1.00 liter solution contains 0.51 M nitrous acid and 0.38 M sodium nitrite. If 25.0...
A 1.00 liter solution contains 0.51 M nitrous acid and 0.38 M
sodium nitrite. If 25.0 mL of water are added to this system,
indicate whether the following statements are TRUE (T) or FALSE
(F). (Note the the volume MUST CHANGE upon the addition of
water.)
A. The concentration of HNO2 will increase.
B. The concentration of NO2- will remain the same.
C. The equilibrium concentration of H3O+ will remain the
same.
D. The pH will remain the same.
E....
find the pH a.) 0.1M propanoic acid (ka=1.3*10^-5) b.)0.1M sodium propanoate c.) 0.1M H20 d.) of...
find the pH a.) 0.1M propanoic acid (ka=1.3*10^-5) b.)0.1M
sodium propanoate c.) 0.1M H20 d.) of a mixture with 0.1M Propionic
acid and sodium propanoate
A buffer with a pH of 4.06 contains 0.13 M of sodium benzoate and 0.18 M...
A buffer with a pH of 4.06 contains 0.13 M of sodium benzoate
and 0.18 M of benzoic acid. What is the concentration of [H ] in
the solution after the addition of 0.052 mol of HCl to a final
volume of 1.3 L? Assume that any contribution of HCl to the volume
is negligible.
A buffer with a pH of 3.98 contains 0.23 M of sodium benzoate and 0.38 M...
A buffer with a pH of 3.98 contains 0.23 M of sodium benzoate
and 0.38 M of benzoic acid. What is the concentration of [H3O+] in
the solution after the addition of 0.054 mol HCl to a final volume
of 1.6 L? Assume that any contribution of HCl to the volume is
negligible.
[H3O] =
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