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

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.

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

Indicate whether each of the following statements is true or false. For each statement that is false, correct the statement to make it true. Hydrotelluric acid 1H2Te2 is a stronger acid than H2S because Te is more electronegative than S.

302. Rank the most to least acidic hydrogen atom. (a) 1 2 3 (b) 3 2 1 (c) 2 1 3 SOH 1 НО 2 'OH 3

HF as a solvent exists as conjugate acid or conjugate base, depending on the acidity or basicity of the solution. If the solute is more acidic than HF then the solvent is present as conjugate acid, conversely, if the solute is more alkaline then the solvent is present as a conjugate base. Determine which compounds act as acids/bases in liquid HF and why!

3. For the following acid - base reaction, (a) predict the products; (b) identify the Bronsted acid, Bronsted base, conjugate acid, and conjugate base; (c) use curved arrows to show the flow of electron pairs in the reaction. CH3 CH2C-OH + NaNHa

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