Consider this organic mechanism: X olo H-C1: G Click and drag to start drawing a structure. Ar 1 2 Does this mechanism describe an acid/base reaction? Note for advanced students: we mean only acid- base reactions in the Brønsted-Lowry sense. Yes! O Certainly not. OWho knows? We need more information to decide. Which reactants, if any, are acting as Brønsted- Lowry acids? 01 02 Which reactants, if any, are acting as Brønsted- Lowry bases? 01 02 If you said this mechanism does describe an acid-base reaction, draw the products of the reaction on the right-hand side above.

. Give an example of a Lewis acid-base pair and a frustrated Lewis acid-base pair. What is the difference between these two systems? What is the mechanism for the reaction with H2?

aund= ney, churge Na O NH2 attack Tonic c) CH3CH2CH2CH,Li + NH3 (acid CH 3 CH2 CH2-CHz t WH2 (Conj acud) (base) (ca bu 2. The equilibrium idea means that if the reaction is reversible there will be four species in solution at one time, the acid, the base, the conjugate acid, and the conjugate base. Sometimes this is what is required, but at other times we need to choose bases that will completely deprotonate every molecule of acid, i.e. send the reaction completely to the right. These bases will include CH3CH,CH2CH;Li, NaNH2, and LiN(i-Pr)2. Weaker bases will include NaOH, NAOCH3, KOtBu, and NaOCH2CH3. For each of these bases, give the products formed when they react with H2O, then use pKa values to get an idea of the relative base strengths of these compounds. You will provided 7 separate reactions. 3. In CHEM 3112, we will study reactions based on the deprotonation of ketones such as acetone, (CH3)2C=0, which has a pKa of 19. Given the bases LiN(i-Pr)2 and NaOCH3, decide which one…

Final Volume V₂ = 341 mL al Volume V₁ =? 10. What is the molecular geometry and molecular polarity for CH₂Cl, and SO, ²? 11. What do catalysts do and how do they affect reaction rates? 12. 2 Atoms are side by side. Their chemical reactivity is dependent on the electrons which hold serve fe 13. Identify the acid, base, conj. Acid, conj. Base: H₂CO, + HPO4 H₂PO4 + HCO, 14. True or False? Chemistry looks at the microscopic view of matter. 15. Identify the 4 biological buffer mechanisms 16. Calculate the density of silver metal if 930 cm³ block has a mass of 2.21 x 104 g. Express the answer with the correct number of significant figures. 17. Kinetic molecular theory describes the behavior of which state of matter? 18. The pH scale operates on a logarithm scale which means an increase or decrease fold in the of pH is by 10s. So, a change in pH from 5 to 3 is a hydrogen ion concentration. And in other words, a pH of 3 has and less OH- than a pH of 5 19. A precipitate occurs in the reaction…