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 Kb of a weak base if a 0.30 M solution of the base has a pH of 11.98 at 25 ° C.
A 0.314 M solution of a weak base has a pH of 10.70. What is the base hydrolysis constant, K, for the weak base? Kb =
A 0.94 M aqueous solution of a weak base has a pH of 10.28 at 298 K. Calculate pKb for this weak base. Enter your answer to 2 decimal places.
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 0.200 M solution of a weak base has a pH of 9.95 . What is the base hydrolysis constant, Kb, for the weak base?
1. What is the pH of a solution which is 0.025 M in weak base and 0.039M in the conjugate weak acid (Ka = 7.1 × 10-6)? 2. A buffer solution is made using a weak acid, HA , that has a pKa of 5 . If the pH of the buffer is 8 , what is the ratio of [A−] to [HA] ? 3.A buffer solution is made using a weak acid, HA . If the pH of the...
++ ++ ++ ++ ++ If the Kh of a weak base is 7.7 x 10-6, what is the pH of a 0.48 M solution of this base? pH = Enough of a monoprotic weak acid is dissolved in water to produce a 0.0136 M solution. The pH of the resulting solution is 2.42. Calculate the K, for the acid. Kg =
4. 16.55 Calculate the pH of an aqueous solution at 25°C that is 0.095 M in hydrocyanic acid (HCN). (K for hydrocyanic acid=4.9 x 1010 Answers TOmTzctu. 10. 16.61 Calculate the Ka of a weak acid if a 0.19-M aqueous solution of the acid has a pH of 4.52 at 25°C Answers 2. 16.71 The pH of a 0.30-M solution of a weak base is 10.66 at 25°C. What is the K of the base? Answers 4. 16.73 Calculate the...
6. A 0.200 M solution of a weak base in water has a pH = 10.40. Calculate the value of K, for this base a 1.0 x 10 b. 3.2 x 10 c. 2.2 x 10 d. 4.0 x 1011 e. 5.0 x 10 7. The ionization constant, K, for dichloroacetic acid, HC,HO_Cl, is 5.0 x 10? What is the pH of a 0.15 molar solution of this acid? a. 1.06 b. 1.19 c. 1.30 d. 1.56 e. 1.82