Question

A 0.500 M solution of a weak base has a pH of 9.20. What is the base hydrolysis constant, Kb, for the weak base?

Answer #1

A 0.300 M solution of a weak base has a pH of 9.10. What is the
base hydrolysis constant, Kb, for the weak base?

A 0.250 M solution of a weak base has a pH of 9.30. What is the
base hydrolysis constant, Kb, for the weak base?

A 0.100 M solution of a weak base has a pH of 9.75. What is the
base hydrolysis constant, Kb, for the weak base?

The pH of a 0.032 M solution of a weak base is 9.83. What is the
pKb for this base? That is the -log(Kb).

A 0.0100 M solution of a weak base has pH = 9.78 at T = 25 C.
What is the numerical value for Kb for the weak base?

A 0.120 M solution of a weak base has a pH of
11.27.
Part A
Determine Kb for the base.

A 1.70 M solution of a weak base has a pH of 9.7. Calculate the
Kb.

A 1.70 M solution of a weak base has a pH of 9.7. Calculate the
Kb.

A 0.0884 M solution of a weak base has a pH of 11.79. What is
the identity of the weak base? Weak Base Kb Ethylamine (CH3CH2NH2)
4.7 X 10–4 Hydrazine (N2H4) 1.7 X 10–6 Hydroxylamine (NH2OH) 1.1 X
10–8 Pyridine (C5H5N) 1.4 X 10–9 Aniline (C6H5NH2) 4.2 X 10–10

A) solution of B-, a weak base , has a pH of 10.90.What is the
molarity of B- if kb=3.24 x 10^-5?
2) 0.500 mol of A2 and 0.500 mol of B2 are placed in sealed
container : the reaction is A2(g)+B2(g)---2AB at equilibrium , the
flask contains 0.6400 mol of AB.What is the Kc at this
temperature?

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