The pH of 1.0 M HOAc was found to be 2.30. Find:
a) H+
b) OAc-
c) HOAc
d) Ka
e) pKa
0.10 M HOAc pH= 2.59 Calculations: 1. [H+] =? 2. [OAc-]=? 3. [HOAc]=? 4. Ka=?
The pH of a 1.0 M solution of a weak acid (HOAc) is 2.37. Calculate the Ka for the acid
Problem 4: Given: 1.0 M HOAC (K. = 1.8 x 10) 1.0 M NaOH stock solution Make 500 mL of 0.50 M HOAc/OAc buffer with pH = 5.00
Problem 5: Given: 1.0 M HOAc solution (K4 = 1.8 x 10-5). 1.0 M NaOAc solution Make 500 mL of 1.0 M HOAc/OAc- buffer with pH = 5.00
Determine how many moles of HOAc and how many moles of OAc^- are present 50. mL of a 1.0 M acetate buffer, pH 4.0.
At the equivalence point of a titration of HOAc (acetic acid, pKa = 1.76 x 10-5) with NaOH, the species present of OAc" and H20. If the concentration of OAc at the equivalence point is 0.50 M, what is the pH of the solution? Remember that Kb x Ka = 10-14 and that the OAc will react with water as follows: OAC- + H20 --> HOÀc + OH- . 1 4.77 2. 10.23 3 5.68 4. 9.23
The titration of 50.00 mL solution of a 0.1 M OAc- with 0.2 M HCl. OAc- is a weak base. Ka for acetic acid = 1.75 * 10^-5. a) Calculate the pH of the 50.0 mL of 0.1 M OAc- solution before the addition of any HCl. b) Calculate the pH of the resulting solution after the addition of 5.0 mL of 0.2 M HCl to the 50.0 mL of 0.1 M OAc- solution. c) Calculate the pH of the resulting...
What is the pH of a 0.25 M NaOAc solution? For HOAc Ka = 1.8 × 10^-5
dont know how to calculate moles of HoAc and the ratio
and the bottom table. please help.
50 Postlaboratory Exercise ratory Exercise Used Mtor poldle on graph Have this page available for your class session after completing your report. (Do not attach it to your report.) the pH, ml, and moles NaOH columns only, before class (moles - M Calculate the equivalence point values first. note about significant figures: When a decimal number is converted to a log, the number...
Find the pH of a solution prepared by adding 1.0 L of 0.10 M butyric acid to 0.50 L of 0.10 M NaOH. (Ka = 1.5 x 10-5) A. 12.69 B. 7.00 C. 2.41 D. 4.82 E. 13.35