A bery weak acid that is 0.424 M in concentration has a pH of 3.21. What...

Question

Question

A bery weak acid that is 0.424 M in concentration has a pH of 3.21. What is the Kb of the acid?

Answer 1

Answer #1

Concentration (C) = 0.uzum pH of wcak-acid = 32) - PH = 3 [ pke - logo (o] _3021 = [pl - loga (ouary ] pra = -loge (ke) 1 Goo

Answer 2

Similar Homework Help Questions

An unknown weak acid with a concentration of 0.078 M has a pH of 1.80. What...

An unknown weak acid with a concentration of 0.078 M has a pH of 1.80. What is the Ka of the weak acid? O of 1 point earned 2 attempts remaining An unknown weak base with a concentration of 0.170 M has a pH of 9.96. What is the Kb of this base? O of 1 point earned 2 attempts remaining
1) Determine the pH of a 0.0785 M unknown weak base solution. Kb of the unknown...

1) Determine the pH of a 0.0785 M unknown weak base solution. Kb of the unknown weak base is 4.7 x 10−6. 2) An unknown weak acid solution with a concentration of 0.0850 M has a pH of 4.35. What is the Ka for this weak acid? 3) What is the pH of a 0.0380 M solution of HNO2? (Use your workbook to find Ka) 4) An unknown weak base solution with a concentration of 0.187 M has a pH...
A weak acid has an initial concentration of 0.0415 M. After undergoing dissociation the pH is...

A weak acid has an initial concentration of 0.0415 M. After undergoing dissociation the pH is 5.31. HA + H2O ⇌ H3O+ + A- What is the percent ionization of the acid?

Determine the pH of a weak acid, HA, that has a concentration of 0.038 M and...

Determine the pH of a weak acid, HA, that has a concentration of 0.038 M and a Ka = 0.000028. Calculate the pH of 0.035M methylamine, CH 3NH 2. K b = 4.4 x 10 -4
A weak acid has an initial concentration of 0.0415 M. After undergoing dissociation the pH is...

A weak acid has an initial concentration of 0.0415 M. After undergoing dissociation the pH is 5.31. HA + H20 = H30* + A What is the percent ionization of the acid? 0.155% 2.34% 0.0993% 0.782% O 0.0118%
A certain weak base has a K of 7.50x107. What concentration of this base will produce...

A certain weak base has a K of 7.50x107. What concentration of this base will produce a pH of 10.23? Number 00017 NH3 is a weak base (Kb = 1.8 x 10-5) and so the salt NH4Cl acts as a weak acid. What is the pH of a solution that is 0.069 M in NH4Cl at 25 °C? Number pH-

Question 22 of 25 Submit An unknown weak acid with a concentration of 0.071 M has...

Question 22 of 25 Submit An unknown weak acid with a concentration of 0.071 M has a pH of 1.80. What is the Ka of the weak acid?
A certain weak base has a Kb of 7.80 x 10-?M. What concentration of this base...

A certain weak base has a Kb of 7.80 x 10-?M. What concentration of this base will produce a pH of 10.06? base concentration:
At a concentration of 1 M, the weak acid HNO, is 2% ionized, and the pH...

At a concentration of 1 M, the weak acid HNO, is 2% ionized, and the pH of the solution is 1.7. What happens when KNO, (s) is dissolved into the solution? The extent of HNO, ionization The concentration of H+ The pH You need to prepare 100.0 mL of a pH 4.00 buffer solution using 0.100 M benzoic acid (pK. = 4.20) and 0.180 M sodium benzoate. How many milliliters of each solution should be mixed to prepare this buffer?...

A 0.048 M solution of an unknown weak acid, HA, has a pH = 2.75. What...

A 0.048 M solution of an unknown weak acid, HA, has a pH = 2.75. What is the hydrogen ion concentration of this solution? Answer in scientific notation and be sure to include your units. (Scientific notation: Ex. 2.4 x 103 = 2.4E3) HA(aq) + H+ (aq) + A (aq) Answer: A 0.048 M solution of an unknown weak acid, HA, has a pH = 2.75. What is the value of the acid dissociation constant, K ? Answer in scientific...