In the reaction, H_2CO_3 + NaOH doubleheadarrow NaHCO_3 + H_2O, the weaker base
ID: 1005729 • Letter: I
Question
In the reaction, H_2CO_3 + NaOH doubleheadarrow NaHCO_3 + H_2O, the weaker base is: a. H_2CO_3 b. NaOH C. NaHCO_3 d. H_2O e. This is not an acid-base reaction. which reaction of these potential acids and bases does not occur to any appreciable degree due to an unfavorable equilibrium? a. NaOH(aq)+CH_3CH_2CH_2COOH b. CH_3CH_2ONa in ethanol + ethene C. CH_3Li in hexane + ethyne d. NaNH_2 in liquid NH_3 + ethanol e. CH_3COONa(aq) + HI Virtually all organic reactions fall into one of four categories Which of the following is not one of these four categories? a Substitution b. Neutralization c. Addition d. Rearrangement e. Elimination The correct equilibrium expression of K_a for acetic acid is: a. [CH_3COO-]/[H_3O^+][CH_3COOH] b. [CH_3COOH/[CH_3COO]/[H_3O] C. [CH_3COOH]/[H_3O+][CH_3COO] d. [H_3O+][CH_3COO]/[CH_3COOH-] Select the strongest acid a. CH_3CH_2OH b R-C CH c. CH_3COOH d. H_2C=CH_2 e R-C=C-CH_3 When proton transfer reactions reach equilibrium, there have been formed a the stronger acid and the weaker base b the stronger acid and the stronger base c the weaker acid and the weaker base d the weaker acid and the stronger base e All proton transfers go to completion; they are not equilibrium processesExplanation / Answer
18) C
In this reaction, H2CO3 is a weak acid, NaOH is a strong base and NaHCO3 is a weak base.
19) B
CH3CH2ONa in ethanol + ethene
20) D
Rearrangement cannot be considered as a reaction, it is simply migration of a group or atom within the molecule.
21) D
CH3COOH + H2O ------------ CH3COO^- + H3O^+
acid dissociation constant Ka = [H3O+][CH3COO-]/CH3COOH
22) C
Acetic cid, CH3COOH is a regular acid unlike the rest and hence the strongest
23) C
The products of proton transfer reactions from the reaction of a base with an acid are the corresponding conjugate acid-base pairs which are essentially weak acids and bases.