A 0.100 M solution of B (base) has pH = 9.28. Find Kb.
If a buffer solution is 0.100 M in a weak base (Kb = 5.0 * 10%) and 0.490 M in its conjugate acid, what is the pH? Number pH = 18.6
You have 15.00 mL of a 0.100 M aqueous solution of the weak base C5H5N (Kb = 1.50 x 10-9). This solution will be titrated with 0.100 M HCl. (a) How many mL of acid must be added to reach the equivalence point? (b) What is the pH of the solution before any acid is added? (c) What is the pH of the solution after 10.00 mL of acid has been added? (d) What is the pH of the solution...
You have 25.00 mL of a 0.100 M aqueous solution of the weak base CH3NH2 (Kb = 5.00 x 10-4). This solution will be titrated with 0.100 M HCl. (a) How many mL of acid must be added to reach the equivalence point? (b) What is the pH of the solution before any acid is added? (c) What is the pH of the solution after 5.00 mL of acid has been added? (d) What is the pH of the solution...
If a buffer solution is 0.100 M in a weak base (Kb = 6.5 x 10-5) and 0.420 M in its conjugate acid, what is the pH? pH =
For a weak base (B), a 0.0100 M and a 0.100 M solution was made. Students obtained the following pH value for the solution. Fill in the table. Report all answers (except pH or pOH values) in scientific notation. 0.0100 M B 0.100 M B pOH 4.32 3.48 [OH-] [BH+] [B] (at equilibrium) Kb For the same solution fill out the following information: 0.0100 M B 0.100 M B pH (Do not...
Find the pH of the following : 0.50 M solution of a base with a Kb = 1.75 x 10-4
If 0.10M solution of a weak base has a pH of 8.90, find the Kb for the base.
Find the pH of a 0.010 M solution of morphine, a weak base with Kb = 1.6 x 10-6
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 0.135 M solution of a weak base has a pH of 11.26. Determine Kb for the base.