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Please explain the questions above. Thank you The following questions A24 - A26 relate to 100 ml of 0.0150 M solution o...
An analytical chemist is titrating 66.3 mL of a 0.9100 M solution of benzoic acid (HCH,CO2)...
An analytical chemist is titrating 66.3 mL of a 0.9100 M solution of benzoic acid (HCH,CO2) with a 0.8600 M solution of NaOH. The pK, of benzoic acid is 4.20. Calculate the pH of the acid solution after the chemist has added 77.8 mL of the NaOH solution to it. Note for advanced students: you may assume the final volume equals the initial volume of the solution plus the volume of NaOH solution added. Round your answer to 2 decimal...
An analytical chemist is titrating 238.8 mL of a 1.200 M solution of benzoic acid (HCH...
An analytical chemist is titrating 238.8 mL of a 1.200 M solution of benzoic acid (HCH CO2) with a 1.000 M solution of NaOH. The pk, of benzoic acid is 4.20. Calculate the pH of the acid solution after the chemist has added 333.5 mL of the NaOH solution to it. Note for advanced students: you may assume the final volume equals the initial volume of the solution plus the volume of NaOH solution added. Round your answer to 2...
Please show all workings please. Thank you so much!! Phenol (C6H5OH) is an aromatic compound that...
Please show all workings please. Thank you so much!!
Phenol (C6H5OH) is an aromatic compound that is soluble in water. The pK, for phenol is 9.95. Questions A27-A29 consider separate solutions of phenol prepared by dissolving 0.0250 moles of phenol in water and making the volume of the solution up to 500 mL. Question A27 The pH of the phenol solution is closest to? A. 0.05 B. 1.3 C. 5.6 D. 6.6 E. 10.0 (2 minutes) Question A28 What is...
b. A 1.00 L buffer solution is 0.150 M in HC7H5O2 and 0.250 M in LiC7H502....
b. A 1.00 L buffer solution is 0.150 M in HC7H5O2 and 0.250 M in LiC7H502. Calc 52 and 0.250 M in LiC7H502. Calculate the pH of the solution after the addition of 0.10 moles HCl. Assume no volume change upon the addition HCI. Assume no volume change upon the addition of acid. The Ka for HC7H5O2 is 6.5 x 10.
Please explain all steps ledgibly the highlighted part is the answer 11. A 500.0 mL buffer...
Please explain all steps ledgibly the highlighted part is the
answer
11. A 500.0 mL buffer solution is 0.10 M in benzoic acid and 0.10 M in sodium benzoate (Ka 6.4 x 109) and has an initial pH of 4.19. What is the pH of the bu Fer upon addition of 0.010 mol of NaOH (assume no volume increase). (1) 1.70 (2) 4.01 (3) 4.28 4)7 (5) 4.51
C. A 1.00 L buffer solution is 0.150 M in HC7H5O2 and 0.250 M in LiC7H502....
C. A 1.00 L buffer solution is 0.150 M in HC7H5O2 and 0.250 M in LiC7H502. Calculate the pH of the solution after the addition of 0.10 moles NaOH. Assume no volume change upon the addition of base. The Ka for HC7H502 is 6.5 x 10-5
need ALL FOUR PLEASE! having a hard time! please do all!! pKa values A1 liter solution...
need ALL FOUR PLEASE! having a hard time! please do
all!!
pKa values
A1 liter solution contains 0.526 M hydrofluoric acid and 0.395 M potassium fluoride. Addition of 0.434 moles of hydrochloric acid will: (Assume that the volume does not change upon the addition of hydrochloric acid.) Raise the pH slightly Lower the pH slightly Raise the pH by several units Lower the pH by several units Not change the pH Exceed the buffer capacity Submit Answer Retry Entire Group...
A chemistry graduate student is given 100 ml. of a 0.60 M benzoic acid (HCH.CO,) solution....
A chemistry graduate student is given 100 ml. of a 0.60 M benzoic acid (HCH.CO,) solution. Benzoic acid is a weak acid with K, 6.3x10 of KCH,CO, should the student dissolve in the HCH.CO, solution to turn it into a buffer with pH = 4.767 What mass You may assume that the volume of the solution doesn't change when the KC HCO, is dissolved in it. Be sure your answer has a unit symbol, and round it to 2 significant...
How many milliliters of 1.0 M NaOH should be added to a 100 mL solution containing...
How many milliliters of 1.0 M NaOH should be added to a 100 mL solution containing 12.212g of benzoic acid (F.W. 122.12g ; Ka = 6.28 x 10-5) to get a pH of 4.8?
5) A 1 L buffer solution is 0.520 M in HF and 0.520 M in NaF....
5) A 1 L buffer solution is 0.520 M in HF and 0.520 M in NaF. Calculate the pH of the solution after adding 0.220 moles of NaOH. Assume no volume change upon the addition of a base. Ka for HF is 3.5 X 10-4
An analytical chemist is titrating 66.3 mL of a 0.9100 M solution of benzoic acid (HCH,CO2) with a 0.8600 M solution of NaOH. The pK, of benzoic acid is 4.20. Calculate the pH of the acid solution after the chemist has added 77.8 mL of the NaOH solution to it. Note for advanced students: you may assume the final volume equals the initial volume of the solution plus the volume of NaOH solution added. Round your answer to 2 decimal...
An analytical chemist is titrating 238.8 mL of a 1.200 M solution of benzoic acid (HCH CO2) with a 1.000 M solution of NaOH. The pk, of benzoic acid is 4.20. Calculate the pH of the acid solution after the chemist has added 333.5 mL of the NaOH solution to it. Note for advanced students: you may assume the final volume equals the initial volume of the solution plus the volume of NaOH solution added. Round your answer to 2...
Please show all workings please. Thank you so much!!
Phenol (C6H5OH) is an aromatic compound that is soluble in water. The pK, for phenol is 9.95. Questions A27-A29 consider separate solutions of phenol prepared by dissolving 0.0250 moles of phenol in water and making the volume of the solution up to 500 mL. Question A27 The pH of the phenol solution is closest to? A. 0.05 B. 1.3 C. 5.6 D. 6.6 E. 10.0 (2 minutes) Question A28 What is...
b. A 1.00 L buffer solution is 0.150 M in HC7H5O2 and 0.250 M in LiC7H502. Calc 52 and 0.250 M in LiC7H502. Calculate the pH of the solution after the addition of 0.10 moles HCl. Assume no volume change upon the addition HCI. Assume no volume change upon the addition of acid. The Ka for HC7H5O2 is 6.5 x 10.
Please explain all steps ledgibly the highlighted part is the
answer
11. A 500.0 mL buffer solution is 0.10 M in benzoic acid and 0.10 M in sodium benzoate (Ka 6.4 x 109) and has an initial pH of 4.19. What is the pH of the bu Fer upon addition of 0.010 mol of NaOH (assume no volume increase). (1) 1.70 (2) 4.01 (3) 4.28 4)7 (5) 4.51
C. A 1.00 L buffer solution is 0.150 M in HC7H5O2 and 0.250 M in LiC7H502. Calculate the pH of the solution after the addition of 0.10 moles NaOH. Assume no volume change upon the addition of base. The Ka for HC7H502 is 6.5 x 10-5
need ALL FOUR PLEASE! having a hard time! please do
all!!
pKa values
A1 liter solution contains 0.526 M hydrofluoric acid and 0.395 M potassium fluoride. Addition of 0.434 moles of hydrochloric acid will: (Assume that the volume does not change upon the addition of hydrochloric acid.) Raise the pH slightly Lower the pH slightly Raise the pH by several units Lower the pH by several units Not change the pH Exceed the buffer capacity Submit Answer Retry Entire Group...
A chemistry graduate student is given 100 ml. of a 0.60 M benzoic acid (HCH.CO,) solution. Benzoic acid is a weak acid with K, 6.3x10 of KCH,CO, should the student dissolve in the HCH.CO, solution to turn it into a buffer with pH = 4.767 What mass You may assume that the volume of the solution doesn't change when the KC HCO, is dissolved in it. Be sure your answer has a unit symbol, and round it to 2 significant...
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