Question

6-8

Uruudlit added 5. On your titration curve in 4, clearly label the equivalen buffering is occurring. Use Option to answer questions 6-8 *. clearly label the equivalence point and any region in which o. Draw the Lewis structure of the acid and mark the acidic hydrogen with an ). acid and mark the acidic hydrogen with an asterisk H- 7. Draw a Lewis structure of the conjugate base of the acid. 8. Suppose the acid is neutralized with a strong base. a) Which of the two structures you drew in 6 and 7 would be the predominant form of the species at a pH well above that at the equivalence point? b) Which of the two structures would be the predominant form of the species at a very low pH, well below that at the equivalence point and similar to the pH near the start of the titration? At what point in the titration, if any, would there be equal amounts of the two forms?

Answer 1

- CH₂ CHg COOH Lewis structure. o=U H- Ć-0-HC Acidic hydoogen, I-0 + Conjugate base of Acid 1 u 4-c - Ċ - - 0 8 (a) Predominate form - Above the point equivalence 4-6 - - Co- ) А ою ри Predominate form. 4-C -c-c -OH 9 Layerce c) o At the equivalence point form are in equal amounts both the are In Mou