Which compounds are Lewis acids? Select all that apply. □ N=C¯ AICI (CH,CH2)2HC+ NaHCO3

Which of the following acids is the strongest? РHз All of the acids are equal in strength. AsH3 SBH3

a Draw a structure for the product of the acid-base reaction below. :o: BF3 + • Include all valence lone pairs in your answer. • If the reaction is a Lewis acid-base reaction, draw the products in a single sketcher, with a single bond connecting the Lewis base and Lewis acid. • If the reaction is a Brønsted acid-base reaction, draw the products in separate sketchers. • Include all nonzero formal charges.

Which compound is an acid? Which one of the options? 1. C6H12O6 2. MgSO4 3. NaOH 4. H2SO4

€ Draw the structure for the conjugate acid of the base shown. Be sure to include all lone pairs and formal charges (if applicable) on the structure. :Br: Br :☐ X 5

Which is the stronger base, (CH3)3N or H2 BO3− ?

Draw the Lewis structure of aminomethanol (HOCH2NH2) and encircle all atoms that enable the molecule to act as Lewis base.

For each conjugate acid-base pair, identify the first species as an acid or a base and the second species as its conjugate acid or base. In addition, draw Lewis structures for each species, showing all valence electrons and any formal charge. (a) HCOOH HCOO-

Acid strength decreases in the series: HNO3> HF > CH3COOH. Which of these species is the strongest base? NO3 CH3CO0 CH3COOH

Consider the following data on some weak acids and weak bases: acid base Ka name formula name formula hydrocyanic acid НCN - 10 4.9 x 10 methylamine CH3NH2 |4.4 × 10 hypochlorous acid HC1O 8. 3.0 × 10 ethylamine C2H,NH,|6.4 × 10 Use this data to rank the following solutions in order of increasing pH. In other words, select a 'l' next to the solution that will have the lowest pH, a '2' next to the solution that will have the next lowest pH, and so on. solution pH 0.1 M C2H5NH3CI choose one 0.1 M NaCN choose one 0.1 M NaCi choose one 0.1 М CН3NH3B choose one