Homework Answers
Request Answer!
We need at least 10 more requests to produce the answer.
0 / 10 have requested this problem solution
The more requests, the faster the answer.
Add Answer to:
Consider the following equilibrium between 2-ethylbenzoic acid (K4 = 4.0x10-5) and its conjugate base: он +...
Consider the following equilibrium between 2-methylpropanoic acid (K, -1.610-5) and its conjugate base: o consenton Crypto...
Consider the following equilibrium between 2-methylpropanoic acid (K, -1.610-5) and its conjugate base: o consenton Crypto H0 = + H30+ CH CH (1) Will lowering the pH shift the equilibrium to the right or to the left? (2) Calculate the ratio of the concentration of 2-methylpropanoate ion to the concentration of 2-methylpropanoic acid at a pH of 2,56 ratio (conjugate base]/(acid) - Submit Answer Retry Entire Group 8 more group attempts remaining erea Previous Next> Save and Exe
Consider the following equilibrium between pentanoic acid (Kx = 1.610-5) and its conjugate base: CHACH, CHA...
Consider the following equilibrium between pentanoic acid (Kx = 1.610-5) and its conjugate base: CHACH, CHA + H20 = CHSCHACHACHE + H30 CH3CH2CH2CH2C-OH CH2CH2CH2CH2C0- (1) Will raising the pH shift the equilibrium to the right or to the left? (2) Calculate the ratio of the concentration of pentanoate ion to the concentration of pentanoic acid at a pH of 6.81. ratio (conjugate base] / [acid] Submit Answer Retry Entire Group 8 more group attempts remaining Previous Next
1. The formula for the conjugate acid of CO,is 2. The formula for the conjugate base...
1. The formula for the conjugate acid of CO,is 2. The formula for the conjugate base of HPO42- is Submit Answer Retry Entire Group 9 more group attempts remaining
Design a buffer that has a pH of 6.36 using one of the weak acid/conjugate base...
Design a buffer that has a pH of 6.36 using one of the weak acid/conjugate base systems shown below. Weak Acid Conjugate BaseKapKa 6.4 x 105 4.19 6.2 x 1087.21 .8 x110.32 C2042 HC03. CO32 ited How many grams of the potassium salt of the weak acid must be combined with how many grams of the potassium salt of its conjugate base, to produce 1.00 L of a buffer that is 1.00 M in the weak base? grams potassium salt...
Write the net ionic equation for the acid-base hydrolysis equilibrium that is established when potassium cyanide...
Write the net ionic equation for the acid-base hydrolysis equilibrium that is established when potassium cyanide is dissolved in water. + H2O(l) = This solution is Submit Answer Retry Entire Group 8 more group attempts remaining The pH of an aqueous solution of 0.200 M ammonium perchlorate, NH_CI04 (aq), is . This solution is - Submit Answer Retry Entire Group 9 more group attempts remaining
2. For the following acid-base equilibrium H-BH + Acid Base Conjugate Base Conjugate Acid (a) Draw...
2. For the following acid-base equilibrium H-BH + Acid Base Conjugate Base Conjugate Acid (a) Draw a curved arrow mechanism above to show the transfer of a proton from the starting acid "acetylene" to the starting base "n-butyllithium"(two curved arrows are necessary). (b) Draw the conjugate base of acetylene and the conjugate acid of n-butyllithium, indicating all counter ions and formal charges in the rectangles provided above. (c) Which side. Left or Right, of this equilibrium is favored thermodynamically? What...
A buffer is composed of formic acid and its conjugate base, the formate ion. K, for...
A buffer is composed of formic acid and its conjugate base, the formate ion. K, for formic acid is 1.8 x 10- a What is the pH of a solution that has a formic acid concentration of 0.020 M and a sodium formate concentration of 0.055 M? pH = 4.18 Correct pK, = - log(1.8 x 10^4) = 3.74 We use the Henderson-Hasselbalch equation to calculate the pH of a buffer solution. (HCO3 pH=pk.vlog HCO, = 3.74 +log 0.055 020...
Question 1 (2 points) The relationship between a weak acid and its conjugate base at the...
Question 1 (2 points) The relationship between a weak acid and its conjugate base at the 1/2 neutralization point is: the weak acid's concentration is greater than the conjugate base concentration. the weak acid's concentration is less than the conjugate base's concentration the weak acid's concentration is 1/2 the concentration of the conjugate base's concentration the weak acid and conjugate base have the same concentration. Question 2 (3 points) ✓ Saved The pka of acid is 4.8. Determine the acid's...
Answer questions a-c about the Bronsted acid-base reaction below using the identifying letters A-D below each...
Answer questions a-c about the Bronsted acid-base reaction below using the identifying letters A-D below each structure. The pka's for the acids of interest are: phenol (pK-9.9), and anilinium ion (PK, -4.6). NH2 on o-oo anilinium phenoxide aniline phenol a) The stronger acid is b) Its conjugate base is c) The species that predominate at equilibrium are two letters, e.g. ae) Submit Answer Retry Entire Group 4 more group attempts remaining
need ALL FOUR PLEASE! having a hard time! please do all!! pKa values A1 liter solution...
need ALL FOUR PLEASE! having a hard time! please do
all!!
pKa values
A1 liter solution contains 0.526 M hydrofluoric acid and 0.395 M potassium fluoride. Addition of 0.434 moles of hydrochloric acid will: (Assume that the volume does not change upon the addition of hydrochloric acid.) Raise the pH slightly Lower the pH slightly Raise the pH by several units Lower the pH by several units Not change the pH Exceed the buffer capacity Submit Answer Retry Entire Group...
Consider the following equilibrium between 2-methylpropanoic acid (K, -1.610-5) and its conjugate base: o consenton Crypto H0 = + H30+ CH CH (1) Will lowering the pH shift the equilibrium to the right or to the left? (2) Calculate the ratio of the concentration of 2-methylpropanoate ion to the concentration of 2-methylpropanoic acid at a pH of 2,56 ratio (conjugate base]/(acid) - Submit Answer Retry Entire Group 8 more group attempts remaining erea Previous Next> Save and Exe
Consider the following equilibrium between pentanoic acid (Kx = 1.610-5) and its conjugate base: CHACH, CHA + H20 = CHSCHACHACHE + H30 CH3CH2CH2CH2C-OH CH2CH2CH2CH2C0- (1) Will raising the pH shift the equilibrium to the right or to the left? (2) Calculate the ratio of the concentration of pentanoate ion to the concentration of pentanoic acid at a pH of 6.81. ratio (conjugate base] / [acid] Submit Answer Retry Entire Group 8 more group attempts remaining Previous Next
1. The formula for the conjugate acid of CO,is 2. The formula for the conjugate base of HPO42- is Submit Answer Retry Entire Group 9 more group attempts remaining
Design a buffer that has a pH of 6.36 using one of the weak acid/conjugate base systems shown below. Weak Acid Conjugate BaseKapKa 6.4 x 105 4.19 6.2 x 1087.21 .8 x110.32 C2042 HC03. CO32 ited How many grams of the potassium salt of the weak acid must be combined with how many grams of the potassium salt of its conjugate base, to produce 1.00 L of a buffer that is 1.00 M in the weak base? grams potassium salt...
Write the net ionic equation for the acid-base hydrolysis equilibrium that is established when potassium cyanide is dissolved in water. + H2O(l) = This solution is Submit Answer Retry Entire Group 8 more group attempts remaining The pH of an aqueous solution of 0.200 M ammonium perchlorate, NH_CI04 (aq), is . This solution is - Submit Answer Retry Entire Group 9 more group attempts remaining
2. For the following acid-base equilibrium H-BH + Acid Base Conjugate Base Conjugate Acid (a) Draw a curved arrow mechanism above to show the transfer of a proton from the starting acid "acetylene" to the starting base "n-butyllithium"(two curved arrows are necessary). (b) Draw the conjugate base of acetylene and the conjugate acid of n-butyllithium, indicating all counter ions and formal charges in the rectangles provided above. (c) Which side. Left or Right, of this equilibrium is favored thermodynamically? What...
A buffer is composed of formic acid and its conjugate base, the formate ion. K, for formic acid is 1.8 x 10- a What is the pH of a solution that has a formic acid concentration of 0.020 M and a sodium formate concentration of 0.055 M? pH = 4.18 Correct pK, = - log(1.8 x 10^4) = 3.74 We use the Henderson-Hasselbalch equation to calculate the pH of a buffer solution. (HCO3 pH=pk.vlog HCO, = 3.74 +log 0.055 020...
Question 1 (2 points) The relationship between a weak acid and its conjugate base at the 1/2 neutralization point is: the weak acid's concentration is greater than the conjugate base concentration. the weak acid's concentration is less than the conjugate base's concentration the weak acid's concentration is 1/2 the concentration of the conjugate base's concentration the weak acid and conjugate base have the same concentration. Question 2 (3 points) ✓ Saved The pka of acid is 4.8. Determine the acid's...
Answer questions a-c about the Bronsted acid-base reaction below using the identifying letters A-D below each structure. The pka's for the acids of interest are: phenol (pK-9.9), and anilinium ion (PK, -4.6). NH2 on o-oo anilinium phenoxide aniline phenol a) The stronger acid is b) Its conjugate base is c) The species that predominate at equilibrium are two letters, e.g. ae) Submit Answer Retry Entire Group 4 more group attempts remaining
need ALL FOUR PLEASE! having a hard time! please do
all!!
pKa values
A1 liter solution contains 0.526 M hydrofluoric acid and 0.395 M potassium fluoride. Addition of 0.434 moles of hydrochloric acid will: (Assume that the volume does not change upon the addition of hydrochloric acid.) Raise the pH slightly Lower the pH slightly Raise the pH by several units Lower the pH by several units Not change the pH Exceed the buffer capacity Submit Answer Retry Entire Group...
Most questions answered within 3 hours.
-
OCHEM LAB
Why does hydration of 2-methyl-3-butyn-2-ol give the ketone,
3-hydroxy-3-methyl-2-butanone (4), rather than the aldehyde,...
asked 2 minutes ago -
A sample of gas at 15 ⁰C and 0.988 atm has a volume of 2.58
liters....
asked 9 minutes ago -
Enzymes are required in retroviruses because the genome
is not used directly as mRNA (T/F)
Please...
asked 7 minutes ago -
An AC generator supplies an rms voltage of 240 V at 50.0 Hz. It
is connected...
asked 20 minutes ago -
Raising taxes on wealthy Americans won’t be enough to deal with the
nation’s budget deficit. Some...
asked 4 minutes ago -
A bacterium (mass = 2.27 x 10−15 kg) in the blood is moving at
0.306 m/s....
asked 6 minutes ago -
look at the Fourth Lateran Council's Canon 18, and argue why a
defendant should not be...
asked 7 minutes ago -
An electron moves at 2.60×106 m/s through a region in
which there is a magnetic field...
asked 18 minutes ago -
Learning aquatic zumba is an example of tacit knowledge. true or
false
asked 38 minutes ago -
Journalize the entries to record the following (refer to the
Chart of Accounts for exact wording...
asked 21 minutes ago -
China’s income per capital maintained an 8% rate of growth in
recent decades. As a result,...
asked 24 minutes ago -
What steps would you take to institutionalize the controls you’d
select for your organization? Where do...
asked 38 minutes ago