NO2- + H2O -- HNO2 + OH- 2. (b)If NO2− is the stronger base, which acid is stronger?. Identify and label the Bronsted- Lowry acid, it's conjugate base, the Bronsted-Lowry base, and it's conjugate acid in each of the following equations: a. NO2- + H2O (YIELD) HNO2 + OH- The nitrite ion is the conjugate base of the weak acid nitrous acid. As in all descriptions of chemical reactivity, both "MASS" and "CHARGE" are conserved. A strong base yields 100% (or very nearly so) of OH − and HB + when it reacts with water; Figure \(\PageIndex{1}\) lists several strong bases. HNO2 is the acid. Removing one H+ gives you its conjugate base. This relative lack of basicity is explained by the withdrawing of electrons from the amine by the carbonyl. Let's look at the reaction of a strong acid, nitric acid or HNO 3, and a weaker acid, nitrous acid or HNO 2, in water. A weaker acid has a stronger conjugate base. The conjugate base of any acid is the original acid LESS a proton, i.e. And thus the conjugate acid of "iodide anion" is "hydroiodic acid". Adding one H+ to anything gives you its conjugate acid. unlock 1.0 1 vote 1 vote Rate! Click Here to review Click Here to go back to the QUIZ!! A strong acid is completely dissociated in water while a weak acid is in equilibrium with its conjugate base in water. Acid Ka HOAc 1.8×10-5 HC7H5O2 6.3×10-5 HNO2 4.5×10-4 HF 6.8×10-4 A)OAc- B)C7H5O2- C)NO2- D)F- E)OAc- and C7H5O2- 4) Identify the acid, base, conjugate acid, and conjugate base of C2H3O2 + HCl -----> C2H4O2 + Cl Acid: HCL Base: C2H3O2 Conjugate acid: C2H4O2 Conjugate base: Cl Got the wrong answer? The value of Kb for NO2-, is 2.22×10-11. TABLE OF CONJUGATE ACID-BASE PAIRS Acid Base K a (25 oC) HClO 4 ClO 4 – H 2 SO 4 HSO 4 – HCl Cl– HNO 3 NO 3 – H 3 O + H 2 O H 2 CrO 4 HCrO 4 – 1.8 x 10–1 H 2 C 2 O 4 (oxalic acid) HC 2 O 4 – 5.90 x 10–2 [H 2 SO 3] = SO 2 (aq) + H2 O HSO Thanks Comments; Report Log in to add a comment Same goes for conjugate acid and conjugate base. H^+. Water is the acid that reacts with the base, \(\ce{HB^{+}}\) is the conjugate acid of the base \(\ce{B}\), and the hydroxide ion is the conjugate base of water. Explanation: In an acid base rxn, the proton donor is the acid while the proton receptor is the base. Write the equation for the reaction that goes with this equilibrium constant. Using the data in the table, which of the conjugate bases below is the weakest base? Nitric acid is a stronger acid than nitrous acid because its conjugate base is … NO2- is the conjugate base. Figure \(\PageIndex{3}\) lists a series of acids and bases in order of the decreasing strengths of the acids and the corresponding increasing strengths of the bases. A stronger acid has a weaker conjugate base. And the conjugate acid of any base is the original base PLUS a proton. The acid and base in a given row are conjugate … Answer to (a) Draw the conjugate acids of NO2− and NO3−. Hence the conjugate acid of oxide ion (O2-) is Hydroxide ion (OH-) O[math]^2- [/math] + H[math]^+[/math] → OH[math]^-[/math] Rate! While the conjugate acid of an amine has a pK a of about 9.5, the conjugate acid of an amide has a pK a around −0.5. What is the conjugate acid in the following equation? Therefore, amides don't have as clearly noticeable acid–base properties in water.

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