Question 2. Question 2: Calculate the pH of 100 mL of a buffer solution that is...
Question 2: Calculate the pH of 100 mL of a buffer solution that is 0.063 M in phenol, C6H5OH (Ka = 1.3 x 10-10), and 0.13 M in NaC6H50 after (a) 0 mL and (b) 10 mL of 0.75 M HCl is added
Calculate the following: a. The pH of a 500.0 mL buffer solution containing 0.75 M HCN (Ka = 6.2 x 10^-10) and 0.55 M NaCN b. The pH of the above buffer after the addition of 100.0 mL of 1.0 M NaOH. c. The pH of the buffer if 100.0 mL of 1.0 M HCl was added to the solution in part a.
Calculate the pH of a buffer solution made with 0.75 M HC2H3O2 and 0.25 M NaC2H3O2 at 25 degrees Celsius. (Ka = 1.8 x 10-5) Which direction will the reaction move in when 1.0 mL of HCl is added to the above buffer solution?
Calculate the pH of a buffer solution made with 0.75 M HC2H3O2 and 0.25 M NaC2H3O2 at 25 degrees Celsius. (Ka = 1.8 x 10-5) Which direction will the reaction move in when 1.0 mL of HCl is added to the above buffer solution?
3) Kb for NH3 1.8 x 10-5 a) Calculate the pH of a buffer solution that is 0.100 M NH3 and 0.120 M NHANO3. b) What is the pH after 60.0 mL of 0.010 M HCl is added to 90.0 mL of the buffer solution in 2(a). Assume the change in volume is additive. c) What is the pH after 60.0 mL of 0.010 M Ca(OH)2 is added to 90.0 mL of the buffer solution in 2(a). Assume the change...
In this problem you will predict the pH of a buffer solution and then predict the new pH after you add NaOH or HCl. Write your answers to three decimal places (X.XXX). The Ka of HC2H3O2 is 1.8×10−51.8×10−5. 1) Calculate the pH of a buffer made from mixing 11.011.0 mL of 0.080.08 M NaC2H3O2 and 9.29.2 mL of 0.080.08 M HC2H3O2. 2) Calculate the pH of the buffer when 5.25.2 mL of 0.0090.009 M NaOH is added to the buffer...
A buffer solution is made up of 100 mL 1.0696 M acetic acid, and 100 mL 1.0410 M sodium acetate. A) Calculate the pH of 75 mL of the buffer solution after the addition of 1 mL of 3 M HCl. B) Calculate the pH of 75 mL of the buffer solution after the addition of 10 mL of 3M HCl.
Calculate the pH of the buffer that results from mixing 90.0 mL of 0.350 M HNO2 and 75.0 mL of 0.500 M NaNO2. (Ka = 4.60 x 10-4) a. Using the above initial buffer, calculate the new pH of the buffer when 15.0 mL of a 1.0 M solution of HCl is added. b. Using the above initial buffer, calculate the new pH of the buffer when 0.500 g of NaOH is added.
a) Calculate the pH of 0.500 L of a buffer solution that contains 0.200 M of benzoic acid C6H5CO2H and 0.100 M sodium benzoate NaC6H5CO2. Ka = 6.3 x 10-5. b) Calculate the pH after .10 mL of 1.00 M H+ has been added. c) Calculate the pH after 10 mL of 1.00 M OH- has been added.
please help!! calculate pH of solutions on second page a-c!!
1. (4 points) A buffer solution is created with C;H,NH, and 0.012 M C;HsNH2. The K, for C,H,NH2 is 4.7 х 104. What is the concentration of C,HNH, in the buffer solution that has a pH of 11.50? а. What is the concentration of the buffer solution if 0.0011 M HC is added to the buffer in part a.? b. Why is the buffer a basic solution? Could this weak...