Academic Integrity: tutoring, explanations, and feedback — we don’t complete graded work or submit on a student’s behalf.

T acetate ion] are both o.0043 mo/L. What is the concentration of acetic acid? A

ID: 693610 • Letter: T

Question

T acetate ion] are both o.0043 mo/L. What is the concentration of acetic acid? A. 7.7×10-8 mol/L B. 4.2 × 103mol/L C. 0.13 mol/L D. 1.0 mol/L 12. The K of acetic acid is 1.8 x 10, In a solution of acetic acid in water, [H 0'] and 13. Which statement about solubility of organic compounds is true? A. B. Alkanes dissolve in water because they are nonpolar. Ethanol does not dissolve in water because ethanol cannot form hydrogen C. Acetone dissolves in water because acetone D. 1-Dodecanol (C-12 alcohol) does not dissolve in water because 1-dod bonds with water. water cannot form hydrogen bonds with water. can form hydrogen bonds with ecanol 14. What is the hydronium ion concentration of a solution with a pH of 5.627 A. B. C. D. 4.2 × 105 mol/L 4.2x10° mol/L 2.4×10-6 mol/L 7.5×10-1 mol/L 15. Which reactant would combine with a carboxylic acid to produce an ester? A. H3C B. C-O-CH HOH

Explanation / Answer

12)

CH3COOH <—>   CH3COO-   +   H+

Ka = [CH3COO-][H+]/[CH3COOH]

1.8*10^-5 = (0.0043*0.0043)/[CH3COOH]

[CH3COOH] = 1.03 M

Answer: D

Only 1 question at a time please