Name f the following choices represents a Bronsted-Lowry acid that is paired wit

Question

Name f the following choices represents a Bronsted-Lowry acid that is paired with its conjugate base? Acid HPO Conjugate Base SO HNI OH 110 HSO (a)+CO so (a) COs (4) 2) The reaction represented above is observed to proceed spontancously to the right in aqueous solution. Which of the following statement is true? a. CO3 b. CO,2 is the strongest base in this system because the value of K for the reaction is c. SO is the strongest base in this system because the value of K for the reaction is d. SO is the strongest base in this system because the value of K for the reaction is is the strongest base in this system because the value of K for the reaction is less than 1 greater than I less than greater than 1 3) Which of the following solutions has the highest plH? a. 0.1 M sodium nitrate, NaNO b. 0.1 M potassium bromide, KBr c. 0.1 M Lithium chlorate, LiCIO d. 0.1 M iron III nitrate, Fe(NO3)s velow Ion Concentration on constant for water, Kw, will be determined by first finding the K etic Acid (CH COOH) and it's conjugate weak base, Sodium 23

Explanation / Answer

Q1

First, let us define Bronsted Lowry acid/base:

Bronsted Lowry acid: any species that will donate H+ (protons) in solution, and makes pH lower (i.e HCl)

Bronsted Lowry base: any species that will accept H+ (protons) in solution, and makes pH higher (NH3 will accept H+ to form NH4+)

Typically, acid/bases are shown in the left (reactants)

when we write the products:

Bronsted Lowery conjugate base = the base formed when the B.L. acid donates its H+ proton ( i.e. HCl -> Cl-

Bronsted Lowery conjugate acid = the acid formed when the B.L. base accept its H+ proton ( i.e. NH4+ has accept H+ proton)

Note that, typically conjugate bases/acids are shown in the right (product) side

So, from your reaction:

HSO4- = acid

CO3-2 = base

and

SO43-2 = conjugate bsae

HCO3- = conjguate acid

Q2

CO3-2 is stronger base than SO4-2

HSO4- will donate H+ to form SO4-2

then CO3-2+ H+ = HCO3-

Q3

highest pH --< basic

from the list

NaNO2 --> Na+ + NO2-

No2- + H2O <-> HNO2+ OH-

choose A

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