Question

calculate the pH of the following solution: 0.10 M NH3 with
KB=1.8x10^-5

Answer #1

calculate the ph of .50 M NH4CL solution for NH3 , Kb= 1.8x10^-5
what is the net ionic equation for the reaction

53. What is the pH of a 0.4283 M aqueous solution of ammonia?
Kb (NH3) = 1.8x10-5

Find the pH of a 0.218 M NH4Cl solution given that the Kb of NH3
= 1.8x10-5 at 25 °C.
The answer is 4.96 but I'm not sure how to get there.

1)
Kb for NH3 is 1.8x10^-5. What is the pOH of a .20M aqueous solution
of NH4Cl at 25 degrees Celsius? (Please show work)
2) Determine the pH of a 0.15 M aqueous solution of KF. For
hydrofluoric acid, Ka=7.0x10^-4. (Please show work)
3) An aqueous solution of _____ will produce a neutral
solution.
A) NaNO2
B) LiNO3
C) KF
D) Rb2CO3
E) NH4NO3

1. Calculate the pH (pH = –log[H+ ]) of the following solutions:
a. 0.10 M HCl
solution b. 0.010 M HCl
solution c. 0.0010 M HCl
solution d. 0.10 M NaOH
solution e. 0.010 M
NaOH
solution f. 0.0010 M NaOH
solution g. 0.10 M HC2H3O2 solution (Ka = 1.8 x 10 –5 )
h. 0.10 M NH3 solution (Kb = 1.8 x 10–5 )

Calculate the ph for the following solutions:
0.10 M NH3
50 mL 0.10 M NH3 + 50 mL 0.10 M
NH4NO3

a. What is the pH of a buffer solution that is 0.24 M
NH3 and 0.24 NH4+? Kb
for NH3 is 1.8x10-5.
b. What is the pH if 17 mL of
0.27 M hydrochloric acid is added to
515 mL of this buffer?

1.Calculate the pH of an 0.0452 M Ba(OH)2 solution at 298 K
2. calculate the pH of an 0.229 M HNO2 solution at 298 K. Assume
ka for HNO2 is 4.5x10^-4
3.Calculate the pH of an 0.292 M NH3 solution at 298 K. assume
the Kb for NH3 is 1.8x10^-5

Calculate the [OH-] pH and percent ionization for a
0.2 M aqueous solution of NH3. Kb = 1.8
x10-5
Thank you!

What is the H3O+ concentration in 1.2 M NH4+ (aq)? The Kb of NH3
is 1.8x10^(-5)

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