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In: Chemistry
The next three (3) problems deal with the titration of 105 mL of 1.35 M ethylamine,...
The next three (3) problems deal with the titration of 105 mL of 1.35 M ethylamine, CH3CH2NH2 (Kb = 5.6 x 10-4) with 0.25 M HCl. Water will be a major species throughout the titration. The chemical species, in addition to water, that can be found in this reaction mixture during the titration are: I. H+ II. OH- III. Cl- IV. CH3CH2NH2 V. CH3CH2NH3+
1. What is the pH of the solution at the equivalence point?
2. How many mL of HCl will need to be added to the ethylamine, CH3CH2NH2 solution to reach a pH of 10.75?
3. What will the major species in solution be when 289.17 mL of HCl has been added to the base solution?
a. CH3CH2NH2, CH3CH2NH3+, Cl-, OH- b. CH3CH2NH3+, Cl-, H+ c. CH3CH2NH2, CH3CH2NH3+, Cl- d. CH3CH2NH2, CH3CH2NH3+, Cl-, H+ e. CH3CH2NH3+, Cl-
Solutions
queen_honey_blossom answered 2 years agoRelated Solutions
The next three (3) problems deal with the titration of 471 mL of 0.501 M carbonic...
The next three (3) problems deal with the titration of 471 mL of
0.501 M carbonic acid (H2CO3) (Ka1 = 4.3 x 10-7, Ka2 = 5.6 x 10-11)
with 1.9 M NaOH.
1) What is the pH of the solution at the 2nd equivalence
point?
2) What will the pH of the solution be when 0.1577 L of 1.9 M
NaOH are added to the 471 mL of 0.501 M carbonic acid?
3) How many mL of the 1.9 M...
The next three (3) problems deal with the titration of 135 mL of 1.55 M triethylamine,...
The next three (3) problems deal with the titration of 135 mL of
1.55 M triethylamine, (CH3CH2)3N (Kb = 4.0 x 10-4) with 0.25 M HCl.
Water will be a major species throughout the titration. The
chemical species, in addition to water, that can be found in this
reaction mixture during the titration are: I. H+ II. OH- III. Cl-
IV. (CH3CH2)3N V. (CH3CH2)3NH+
1) What is the pH of the solution at the equivalence point?
2) How many mL...
The next three (3) problems deal with the titration of 135 mL of 1.55 M triethylamine,...
The next three (3) problems deal with the titration of 135 mL of
1.55 M triethylamine, (CH3CH2)3N (Kb = 4.0 x 10-4) with 0.25 M HCl.
Water will be a major species throughout the titration. The
chemical species, in addition to water, that can be found in this
reaction mixture during the titration are:
I. H+ II. OH- III. Cl- IV. (CH3CH2)3N V. (CH3CH2)3NH+
1) What is the pH of the solution at the equivalence point?
2) How many mL...
The next problems deal with the titration of 75 mL of 1.55 M diethylamine, (CH3CH2)2NH (Kb...
The next problems deal with the titration of 75 mL of 1.55 M
diethylamine, (CH3CH2)2NH (Kb = 1.3 x 10-3) with 0.25 M HCl. Water
will be a major species throughout the titration. The chemical
species, in addition to water, that can be found in this reaction
mixture during the titration are:
I. H+ II. OH- III. Cl- IV. (CH3CH2)2NH V. (CH3CH2)2NH2+
a)What is the pH of the solution at the equivalence point?
b) How many mL of HCl will...
titration of 100.0 mL of 0.6 M H3A by 0.6 M KOH for the next three...
titration of 100.0 mL of 0.6 M H3A by 0.6 M KOH for the next
three questions. The triprotic acid has Ka1 = 1.0 x 10-3, Ka2 = 1.0
x 10-6, and an unknown value for Ka3. 1) Calculate the pH after
100.0 mL of KOH has been added. Calculate the pH after 150.0 mL of
KOH has been added.The pH of the solution after 200.0 mL of KOH has
been added is 8.00. Determine the value of Ka3 for...
Determine the pH during the titration of 31.7 mL of 0.371 M ethylamine (C2H5NH2, Kb =...
Determine the pH during the titration of 31.7 mL of 0.371 M
ethylamine (C2H5NH2, Kb = 4.3×10-4) by 0.371 M HI at the following
points. (Assume the titration is done at 25 °C.) Note that state
symbols are not shown for species in this problem.
(a) Before the addition of any HI
(b) After the addition of 12.0 mL of HI
(c) At the titration midpoint
(d) At the equivalence point
(e) After adding 49.5 mL of HI
The next 11 questions are related to the titration of 20.00 mL of a 0.0950 M...
The next 11 questions are related to the titration of 20.00 mL
of a 0.0950 M acetic acid solution with 0.0700 M KOH. Assume that
the temperature is 25 oC.
What is the initial pH of the analyte solution?
What is the pH when 17.00 mL of the KOH solution have been
added?
What is the pH when 33.00 mL of the KOH solution have been
added?
The next 7 questions are related to the titration of 60.0 mL of a 0.0250 M...
The next 7 questions are related to the titration of 60.0 mL of
a 0.0250 M Zn2+ solution with 0.0600 M EDTA in a solution buffered
at pH 11. Assume that the temperature is 25 oC and that the
formation constant for Zn2+ is 3.13 x 1016 at this temperature.
How many mmols of Zn2+ are present in the solution before the
titration begins?
What volume of the EDTA solution is needed to reach the
equivalence point?
What is the...
The next 11 questions are related to the titration of 25.00 mL of a 0.0750 M...
The next 11 questions are related to the titration of 25.00 mL
of a 0.0750 M acetic acid solution with 0.0750 M KOH. Assume that
the temperature is 25 oC.
What is the initial pH of the analyte solution?
2.94
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Tries
What volume of KOH is required to reach the equivalence point
of the titration?
25.00 mL
You are correct.
Your receipt no. is 150-8154 Help: Receipt Previous
Tries...
3. A 30.0-mL sample of 0.10 M C2H3NH2 (ethylamine) is titrated with 0.15 M HCl. What...
3. A 30.0-mL sample of 0.10 M C2H3NH2 (ethylamine) is titrated
with 0.15 M HCl. What is the pH of the solution after 20.00 mL of
acid have been added to the amine? Kb = 6.5 × 10–4
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