Assuming you have collected 35 mL of egg white, how much 1.0 N acetic acid will be added to the egg white?
Assuming you have collected 35 mL of egg white, how much 1.0 N acetic acid will...
Assume that you have collected 35 ml egg white. Answer the following question: What will be the pH of the egg white solution after adding 1 N acetic acid, assuming egg white is neutral?
3.5 mL of 1 N acetic acid is added to 35 mL of a neutral solution. What is the resulting pH of the solution?
Calculate the pH of the following solutions: 50.0 mL 0.10 M acetic acid + 1.0 mL 1.0 M HCl 50.0 mL 0.10 M acetic acid + 1.0 mL 1.0 M NaOH 50.0 mL 0.10 M sodium acetate + 1.0 mL 1.0 M HCl 50.0 mL 0.10 M sodium acetate + 1.0 mL 1.0 M NaOH 50.0 mL 0.10 M acetic acid/sodium acetate buffer 50.0 mL 0.10 M acetic acid/sodium acetate buffer + 1.0 mL 1.0 M HCl 50.0 mL 0.10...
The acid dissociation constant of acetic acid is Ka = 1.74x10-5. (a) How much does the pH value of 10 mL 0.05 M acetic acid solution change if we add 40 mL 1.25 x10-2 M Na-acetate solution to it? (b) How many mL of a 0.05 M NaOH solution must be added to the acetic acid solution above in order to change the pH value by exactly 1 unit?
Acetic acid has a pKa of 4.74. A stock solution of 1.0 M acetic acid is available. A stock solution of 2.0 M potassium acetate is available. Show all the calculations and explain how to make 560.0 mL of 250. mM acetate buffer that has a pH = 5.0. (Hint: first make a 250 mM potassium acetate solution and a 250 mM acetic acid solution. Then determine how much of each to use.). pH = pKa + log {[acetate]/[acetic acid]}
What concentration of HCl will have a pH of 5.0? b) What concentration of acetic acid will have a pH of 5.0? (For acetic acid, pKa=4.76) c) What concentration of phosphoric acid will have a pH of 5.0? (For H3PO4, pKa1 = 2.12, pKa2 = 7.21, pKa3 =12.32) d) What is the pH of a 10 mM solution of phosphoric acid? e) How much 1.0 M NaOH must be added to 100 ml of 10 mM H3PO4 to raise the...
4. How much of (in mL) 0.15 M acetic acid (pKa 4.76) is needed to mix with 40 mL of 0.15 M sodium acetate to make a buffer of pH = 4.50 of 250 mL? (molar mass of acetic acid and sodium acetate are 60.0 g/mol and 82.0 g/ml, pKa of acetic acid is 4.76) (extra 10 pt)
3. You need 6 mL of a chloroform-methanol-acetic acid 100:2:2 mixture How would you prepare a convenient volume of this mixture without too much leftover? Record these volumes in step 9 of the procedure so that you have them during lab. mL chloroform+ mL methanol + mL acetic acid
D. Consider a buffer system prepared from 1.0 M acetic acid (HC2H,02) and 1.0 M sodium acetate (NaC2H,02). The Ka of acetic acid is 1.7x10 What is the pH of 1.0 L of this buffer, after 15.0 mL of 0.65 M HCI has been added?
What should the pH of a solution of 1.0 mL of 0.1 M acetic acid and 1.0 mL of 0.1 M sodium acetate and 48.0 mL of water be? Justify your answer.