Chemistry Homework Help

Browse Homework Solutions

394 solutions

Buffer

Q. Determine the pH change when 0.096 mol NaOH is added to 1.00 L of a buffer solution that is 0.332 M in HCN and 0.373 M in CN-. pH after addition − pH before addition = pH change =

Solved • Apr 20, 2020

Buffer

Q. buffer solution contains 0.307 M NaHCO3 and 0.236 M Na2CO3. Determine the pH change when 0.048 mol HCl is added to 1.00 L of the buffer. pH change =

Solved • Apr 20, 2020

Buffer

Q. A solution has [C6H5COOH] = 0.100 M and [Ca(C6H5COO)2] = 0.200 M. Ka = 6.3 × 10^−5 for C6H5COOH. The solution volume is 5.00 L. What is the pH of the solution after 10.00 mL of 5.00 M NaOH is added?

Solved • Apr 16, 2020

Buffer

Q. Determine whether or not each mixture is a buffer.

Solved • Apr 16, 2020

Buffer

Q. a buffer solution with a pH of 4.78 is prepared with ____ M formic acid and 0.90 M sodium formate. The Ka of formic acid is 1.8x10^-4.

Solved • Apr 16, 2020

Buffer

Q. A buffer solution with a pH of 4.40 is prepared with 0.78 M Na C2H3O2 and ______ M HC2H3O2. The Ka of HC2H3O2 is 1.8x10^-5

Solved • Apr 15, 2020

Buffer

Q. Write equations for reactions that occur when each of the following is added to a buffer solution composed of HF (a weak acid) and NaF. How does it work when we add a strong acid, HCl? b) What happens when we add a strong base, NaOH?

Solved • Apr 15, 2020