Which are conjugate acid-base pairs?

Answer 1

an acid and a base that are the same except for an H+

-apex

Answer 2

An acid base pair which differ from each other by a single proton(H+ ion) is called a conjugate pair.

Eg. Acid Base

HCl Cl-

NH3 NH4+

H2O H3O+

Answer 3

A conjugate acid is formed when a base gains a positive hydrogen Ion (H+), and thus, having the ability to lose this ion becomes a weak acid. The opposite is true when forming a conjugate base, an acid loses a H+ ion and therefore is a base, as it is able to steal ions.

Answer 4

It is “The base formed when an acid loses an H+.”

APEX

Answer 5

Conjugate acid-base pairs differ by a single proton. For example, ammonia (NH3) is a base, and its conjugate acid is ammonium (NH4+). Another example is water (H2O) as a base, and its conjugate acid is hydronium (H3O+).

Answer 6

The Bronsted Lowry theory states that:

• All acids are substances which can donate protons (H+)
• Bases are substances that can accept protons.

some (like water) can accept and donate protons. These are called amphiprotic:

H2O + H+ --> H30+

H2O + NH3 --> NH4+ + OH-

If you have an equation like:

HNO3 + OH- --> NO3- + H2O.

Here, the HNO3 has donated an H+ ion to the OH- to make the OH- into H2O. The HNO3 therefore becomes NO3- because it has lost a hydrogen ion.

The conjugate (acid-base) pairs are H2O with OH-, and HNO3 with NO3-, and also NH4+ with NH3 because they are the ones which have been changed into each other.

Pairs will always differ just ONE proton (H+).

Answer 7

A pair of two species that transform into each other by gain or loss of electrons.

The equilibria between two ions - HNO2 <==> H+ + NO2

Answer 8

NH3 and NH4+ HBr and Br- H2O and H3O+ HNO2 and NO2- H2SO4 and HSO4- H2O and OH- HOCl and OCl- HI and I-

Answer 9

An acid base pair which differ from each other by a single proton(H+ ion) is called a conjugate pair.

Eg. Acid Base

HCl Cl-

NH3 NH4+

H2O H3O+

Answer 10

An acid and a base that are the same except for an H+