Enter your answer in the provided box. Determine the Kb of a weak base if a 0.30 M solution of the base has a pH of 11.98 at 25 ° C. |
Enter your answer in the provided box. Determine the Kb of a weak base if a 0.30 M solution of the base has a pH of...
Enter your answer in the provided box. Calculate the pH at 25 ° C of a 0.0085 M solution of a weak base with a Kb of 2.4 × 10−9.
Determine the Kb of a weak base if a 0.52 M solution of the base has a pH of 10.68 at 25°C. Kb = ? × 10 ? (Enter your answer in scientific notation.)
Enter your answer in the provided box. Calculate the pH at 25°C of a 0.12 M solution of a weak base with a K of 1.0 * 10-11.
(a) Determine the Kb of a weak base if a 0.847 M aqueous solution of the base at 25°C has a pH of 10.88. (Enter your answer in scientific notation.) (b) Determine the concentration of a solution of ammonium chloride (NH4Cl) that has pH 5.19 at 25°C. (c) Calculate the pH of a 0.011 M NaF solution. (Ka for HF = 7.1 × 10−4.)
A 0.150 M solution of a weak base has a pH of 11.22. Determine Kb for the base. Express your answer using two significant figures.
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.
The pH of a 0.30 M solution of a weak base is 10.82. What is the Kb of the base?
Enter your answer in the provided box. Determine the pH of a 0.16 M solution of sodium acetate (CH3COONa) at 25°C. (K, of acetic acid = 1.8 x 10-5.) pH = 8.
I was not given the Kb. Enter your answer in the provided box. A buffer that contains 1.00 M base, B, and 0.750 M of its conjugate acid, BH, has a pH of 9.550. What is the pH after 0.0055 mol of HCl is added to 0.500 L of this solution? pH =