What is the Kb of X1- if a 0.0220-M solution of KX has a pH of 12.007? Kb
QUESTION 4 What is the pH of 31.56 mL of a 0.1528 M solution of a weak monoprotic basic base (B:, Kb = 2.41 x 10-0) @ the midway point of a titration with 0.1236 M HCIO3? %3D Your answer must have 2 decimal places. QUESTION 5 What is the pH of 37.88 mL of a 0.1142 M solution of a weak basic base (B:, Kp = 7.95 x 10-4) that has been titrated with 18.45 mL of 0.1831 M...
Butylamine, , is a weak base. A 0.77 M aqueous solution of butylamine has a pH of 12.20. What is Kb for butylamine? Calculate the pH of a 0.88 M aqueous solution of butylamine. Kb? pH?
A solution of Na3AsO4 is added dropwise to a solution that is 0.0220 M in Cu2+ and 0.492 M in Ag+. The Ksp of Cu3(AsO4)2 is 7.95e-36. The Ksp of Ag3AsO4 is 1.03e-22. (a) What concentration of AsO43- is necessary to begin precipitation? (Neglect volume changes.) [AsO43-] = M. (b) Which cation precipitates first? Cu2+ Ag+ (c) What is the concentration of AsO43- when the second cation begins to precipitate? [AsO43-] = M.
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?
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 =
What is the pH of a 0.4 M sodium carbonate solution? Carbonate has a Kb of 2.1 x 10-4.
a. What is the Kb for HC2O4-? b. The pH of a 2.5 M solution of a weak base is 12.68. What is the Kb for this base? c. The pH of a 1.50 M solution of a weak acid is 2.405. What is the Ka for this acid? d. Calcuate the pH of a 1.52 M solution of NH3.
1) The pOH of a 0.340 M solution of NaOH is: 2) The pOH of 0.0220 M solution of Sr(OH)₂ is: Please answer BOTH questions 1 and 2!! Thanks!
Calculate the pH of a 0.445 M NH, solution. NH, has a Kb = 1.8 x 10-5. pH = The K, of a weak monoprotic acid is 1.59 x 10-5. What is the pH of a 0.0808 M solution of this acid? pH =