6. (2 marks) What is the pH and pOH of a mixture containing 0.050 mol 1...
8. What is the pH of a solution containing 6 mM acetic acid (Ka of acetic acid is 1.8 x 10) a. -0.77 b. 1.98 d. 2.92 e. 3.49 с. 2.22 9. One of the strongest acids known is called fluorosulfonic acid, HSO3F (pKa= -10). What the pOH of 1M of this acid? a. -0.053 b. О d. 14 е. 14.053 с. 9 10. Which of the following substances can be amphoteric? a. HSO4 b. NH4 с. 02- d. H30...
A solution is prepared by mixing 20.0 mL of 0.050 M acetic acid and 10.0 mL of 0.100 M HCl. What is the pH of the solution? ( Ka acetic acid = 1.8 x 10-5) A. 2.36 B. 0.22 C. 1.48 D. 1.00 E. 0.48
5. What are the pH and pOH of a solution containing 5 mL of 5 M benzoic acid (ka = 6.3 x 10-5) and 100 mL of 0.005 M benzoate solution?
6) The Ka of acetic acid (HC2H302) is 1.8 x 10-5. What is the pH at 25.0 °C of an aqueous solution that is 0.100 M in acetic acid? A) -6.61 B) +11.13 C) +2.87 D) -2.87 E) -11.13
2. What is the pH of a buffer that is initially 0.050 Macetic acid (Ka = 1.8 x 10-5) and 0.025 M sodium acetate? A. 4.4 B. 4.7 C. 5.1 D. 6.3
What is the pH if 0.035 mol NaOH is added to 2.0L of a buffer containing 0.10 M acetic acid, CH3COOH, and 0.10 M sodium acetate, CH3COONa? (K, for CH3COOH - 1.8 x 10-5). O pH = 6.83 O pH = 7.91 O pH = 4.89 O pH = 6.23 O pH = 5.08
calculate the pH & POH of a mixture containing 20.0 mL of 0.150 m HBr mixed W/ 40.0 mL of water.
A student titrated a 100.0 mL sample of 0.100 M acetic acid with 0.050 M NaOH. (For acetic acid, Ka = 1.8 * 10^-5 at this temperature.) (a) Calculate the initial pH. (b) Calculate the pH after 50.0 mL of NaOH has been added. (c) Determine the volume of added base required to reach the equivalence point. (d) Determine the pH at the equivalence point?
A buffer that is a mixture of acetic acid and potassium acetate has a pH = 5.22. The molar ratio of the conjugate base to weak acid in this buffer is? (acetic acid Ka = 1.8 x 10-5 ) A. 1:3 B. 1:5 C. 3:1 D. 1:1 E. 5:1
What is the pH of a solution made by adding 0.30 mol of acetic acid (Ka = 1.8 x 10-5) to enough water to make 1.0 L of solution?