Question

In: Chemistry

The pH of a 0.120 M solution of a weak base is 10.97 at 25ºC. Calculate...

The pH of a 0.120 M solution of a weak base is 10.97 at 25ºC. Calculate the pH of a 0.0316 M solution of this base at 25ºC.

Solutions

Expert Solution

Find the Kb from initial solution and then find ph of 0.0316 M solution


Related Solutions

Calculate the pH for 200. mL of a 0.750 M solution of the weak base, ethanolamine...
Calculate the pH for 200. mL of a 0.750 M solution of the weak base, ethanolamine (HOCH2CH3NH2), Kb=3.20x10-5 ) being titrated with 0.750 M HCl at the following positions in the titration. a) The initial pH (before any HCl has been added). a. 2.300 b. 3.542 c. 8.945 d. 11.690 e. 13.976 b) The pH of the solution after 75.0 mL of 0.750 M HCl has been added. a. 0.769 b. 9.727 c. 3.564 d. 8.654 e. 13.230 c)The pH...
Part A Find the pH of a 0.120 M solution of a weak monoprotic acid having...
Part A Find the pH of a 0.120 M solution of a weak monoprotic acid having Ka= 1.8×10−5. Part B Find the percent dissociation of this solution. Part C Find the pH of a 0.120 M solution of a weak monoprotic acid having Ka= 1.4×10−3. Part D Find the percent dissociation of this solution. Part E Find the pH of a 0.120 M solution of a weak monoprotic acid having Ka= 0.15. Part F Find the percent dissociation of this...
C. Calculate the pH of a 0.10 M aqueous solution of the weak base ammonia, NH3...
C. Calculate the pH of a 0.10 M aqueous solution of the weak base ammonia, NH3 , if the degree of dissociation is 1.34%.
The pH of a 0.110 M solution of a weak base is 9.69. What is the...
The pH of a 0.110 M solution of a weak base is 9.69. What is the Kb of the base?
The pH of a 0.392 M solution of the conjugate base, A-, of a weak acid,...
The pH of a 0.392 M solution of the conjugate base, A-, of a weak acid, HA, is 11.60. What is the Kb for A-? Please show work
Part C Find the pH of a 0.120 M solution of a weak monoprotic acid having...
Part C Find the pH of a 0.120 M solution of a weak monoprotic acid having Ka= 1.7×10−3. Express your answer to two decimal places. Part D Find the percent dissociation of this solution. Express your answer using two significant figures Part E Find the pH of a 0.120 M solution of a weak monoprotic acid having Ka= 0.15. Express your answer to two decimal places. Part F Find the percent dissociation of this solution. Express your answer using two...
Calculate the pH of a 0.0290 M aqueous solution of the weak base triethylamine ((C2H5)3N, Kb...
Calculate the pH of a 0.0290 M aqueous solution of the weak base triethylamine ((C2H5)3N, Kb = 5.20×10-4). pH = ?
A 0.400 M solution of weak base has a pH of 9.85. What is the base...
A 0.400 M solution of weak base has a pH of 9.85. What is the base hydrolysis constant, Kb for the weak base?
The pH of an aqueous solution of 0.538 M ethylamine (a weak base with the formula...
The pH of an aqueous solution of 0.538 M ethylamine (a weak base with the formula C2H5NH2) is _________
24. A)The pH of an aqueous solution of 0.475 M triethylamine (a weak base with the...
24. A)The pH of an aqueous solution of 0.475 M triethylamine (a weak base with the formula (C2H5)3N) is_____? B)The hydroxide ion concentration, [OH-], of an aqueous solution of 0.475 M ammonia is ___________M.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT