Question
In: Chemistry
Piperazine, HN(C4H8)NH, is a diprotic weak base used as a corrosion inhibitor and an insecticide and...
Piperazine, HN(C4H8)NH, is a diprotic weak base used as a corrosion inhibitor and an insecticide and has the following properties:
pKb1=4.22 pKb2=8.67
For writing the reactions of this base in water, it can be helpful to abbreviate the formula as Pip:
Pip+H2OPipH++H2O??PipH++OH?PipH22++OH?
The piperazine used commercially is a hexahydrate with the formula C4H10N2?6H2O.
a. Calculate the pH after 2.575mL of HCl have been added.
b. Calculate the pH when 12.875mL of HCl has been added.
c. What is the pH at the first midway point?
please don't copy and paste that yahoo answers bs, it doesn't give the right answer.
Solutions
queen_honey_blossom answered 1 year agoRelated Solutions
Piperazine, HN(C4H8)NH, is a diprotic weak base used as a corrosion inhibitor and an insecticide and...
Piperazine, HN(C4H8)NH, is a diprotic weak base used as a
corrosion inhibitor and an insecticide and has the following
properties: pKb1=4.22, pKb2=8.67 For writing the reactions of this
base in water, it can be helpful to abbreviate the formula as Pip:
Pip + H2O ⇌ PipH+ + OH− PipH+ + H2O ⇌ PipH22+ + OH− The piperazine
used commercially is a hexahydrate with the formula C4H10N2⋅6H2O. A
0.00515-mol sample of piperazine hexahydrate is dissolved in enough
water to produce 100.0...
Piperazine, HN(C4H8)NH, is a diprotic weak base used as a corrosion inhibitor and an insecticide and...
Piperazine, HN(C4H8)NH, is a diprotic weak base used as a
corrosion inhibitor and an insecticide and has the following
properties: pKb1=4.22pKb2=8.67 For writing the reactions of this
base in water, it can be helpful to abbreviate the formula as Pip:
Pip+H2OPipH++H2O⇌⇌PipH++OH−PipH22++OH− The piperazine used
commercially is a hexahydrate with the formula C4H10N2⋅6H2O.
Show the titration curve by plotting the following points:
• the initial pH of the solution. (pH=11.23)
• the pH at the 25% neutralization point of the first...
The titration of weak diprotic acid H2A with strong base is conducted. What is the pH...
The titration of weak diprotic acid H2A with strong
base is conducted. What is the pH of the solution at the following
volumes, 0,10,25,50,60,75,100,125,and 150mL if
Ka1=1.0x10^-4 and
Ka2=3.5x10^-4 and the concentrations for both
HA- and OH- are 0.1M?
Part A Pyridine is a weak base that is used in the manufacture of pesticides and...
Part A Pyridine is a weak base that is used in
the manufacture of pesticides and plastic resins. It is also a
component of cigarette smoke. Pyridine ionizes in water as follows:
C5H5N+H2O⇌C5H5NH++OH− The pKb of pyridine is 8.75. What is the pH
of a 0.465 M solution of pyridine? (Assume that the temperature is
25 ∘C.) Express the pH numerically to two decimal places.
Part B Benzoic acid is a weak acid that has
antimicrobial properties. Its sodium salt,...
A) Pyridine is a weak base that is used in the manufacture of pesticides and plastic...
A)
Pyridine is a weak base that is used in the manufacture of
pesticides and plastic resins. It is also a component of cigarette
smoke. Pyridine ionizes in water as follows:
C5H5N+H2O⇌C5H5NH++OH−
The pKb of pyridine is 8.75. What is the pH of a 0.205
M solution of pyridine?
Express the pH numerically to two decimal places.
B)
Benzoic acid is a weak acid that has antimicrobial properties.
Its sodium salt, sodium benzoate, is a preservative found in foods,
medications,...
Pyridine is a weak base that is used in the manufacture of pesticides and plastic resins....
Pyridine is a weak base that is used in the manufacture of
pesticides and plastic resins. It is also a component of cigarette
smoke. Pyridine ionizes in water as follows: C5H5N+H2O⇌C5H5NH++OH−
The pKb of pyridine is 8.75. What is the pH of a 0.500 M solution
of pyridine? Express the pH numerically to two decimal places.
Part B Benzoic acid is a weak acid that has antimicrobial
properties. Its sodium salt, sodium benzoate, is a preservative
found in foods, medications,...
Pyridine is a weak base that is used in the manufacture of pesticides and plastic resins....
Pyridine is a weak base that is used in the manufacture of
pesticides and plastic resins. It is also a component of cigarette
smoke. Pyridine ionizes in water as follows:
C5H5N+H2O⇌C5H5NH++OH−
The pKb of pyridine is 8.75. What is the pH of a 0.405
Msolution of pyridine? (Assume that the temperature is 25
∘C.)
Benzoic acid is a weak acid that has antimicrobial properties.
Its sodium salt, sodium benzoate, is a preservative found in foods,
medications, and personal hygiene products....
Pyridine is a weak base that is used in the manufacture of pesticides and plastic resins....
Pyridine is a weak base that is used in the manufacture of
pesticides and plastic resins. It is also a component of cigarette
smoke. Pyridine ionizes in water as follows:
C5H5N+H2O⇌C5H5NH++OH−
a) The pKb of pyridine is 8.75. What is the pH of a
0.440 M solution of pyridine?
Benzoic acid is a weak acid that has antimicrobial properties.
Its sodium salt, sodium benzoate, is a preservative found in foods,
medications, and personal hygiene products. Benzoic acid
dissociates in water:...
1) Pyridine is a weak base that is used in the manufacture of pesticides and plastic...
1) Pyridine is a weak base that is used in the manufacture of
pesticides and plastic resins. It is also a component of cigarette
smoke. Pyridine ionizes in water as follows: C5H5N+H2O⇌C5H5NH++OH−
The pKb of pyridine is 8.75. What is the pH of a 0.310 M solution
of pyridine? Express the pH numerically to two decimal places
2)Benzoic acid is a weak acid that has antimicrobial properties.
Its sodium salt, sodium benzoate, is a preservative found in foods,
medications, and...
1.Pyridine is a weak base that is used in the manufacture of pesticides and plastic resins....
1.Pyridine is a weak base that is used in the manufacture of
pesticides and plastic resins. It is also a component of cigarette
smoke. Pyridine ionizes in water as follows: C5H5N+H2O⇌C5H5NH++OH−
C 5 H 5 N + H 2 O ⇌ C 5 H 5 N H + + O H − The pKb p K b of pyridine
is 8.75. What is the pH p H of a 0.320 M M solution of pyridine?
Express the pH p H...
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