What is the conjugate base in equation no2-+h2o hno2+oh- ?

The hydroxide ion is the conjugate base in this equation.

Explanation:

The acid and base in a conjugate pair differ only by a proton . As the Bronsted-Lowry acid-base theory goes, the substance with that extra proton is considered to be the acid. The other substance in the pair is considered to be the base.

In this reaction, there are two conjugate acid-base pairs:

:

Base: , which accepts a proton;Acid: .

:

Acid: , which supplies a proton;Base: .

By convention, an acid A reacts with a base B to produce

a conjugate base of A, and a conjugate acid of B.

In other words,

.

For this reaction,

Acid A is , andBase B is .

On the right-hand side of the equation:

The Conjugate Base of A is , andThe Conjugate Acid of B is .

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Adozen is 1221/12 = 1.751.75 x 12 = 21therefore, 1.75 is the answer.