Which of the following is a conjugated acid?

Conjugate Acid-Base Pairs

Below are some molecular representations of various acids (the water molecules have been left out). Which best represents an aqueous solution of hydrogen cyanate (HOCN, a weak acid)?

Índice Show

Conjugate Acid-Base Pairs
Which of the following are conjugate acid?
What is an example of a conjugate acid?
Which of the following is conjugate acid
Which of the following is a conjugated acid pair?

HOCN is a weak acid and will partially ionize in aqueous solutions.

Good! Since HOCN is a weak acid, both HOCN and OCN- will be in solution.

HOCN is a weak acid and will only partially ionize in aqueous solutions.

The chemical equation representing the reactions occuring in a hydrogen cyanate solution is:

The double arrow in the above equation represents an equilibrium. This means in the solution, both the forward and backward reactions are occurring. It is important to realize that in this solution, reactions are always occuring; reactions do not stop after equilibrium is reached. Under the magnifying glass below you can see a representation of the molecules present in this solution.

Click on magnifying glass to see a reaction occur. Clicking again will show another reaction.

In this representation, you can observe the acidic nature of the HOCN molecule, that is you can see it donate a proton to water. The reverse reaction shows the basic nature of the OCN- ion; you can see it accept a proton from the hydronium ion.

HOCN and OCN- are an example of a conjugate acid-base pair. The only difference between the two is a proton (H+).

All acids have a conjugate base and all bases have a conjugate acid.

From the list of molecule/ion pairs below, click on those that are conjugate acid-base pairs.

Which of the following are conjugate acid?

The correct answer is (C) HSO4−. A conjugate acid, within the Brønsted–Lowry acid-base theory, is a species formed by the reception of a proton by a base—in other words, it is a base with a hydrogen ion added to it.

What is an example of a conjugate acid?

An example of a conjugate acid is hydronium ion (H3O) produced from reactants nitric acid (HNO3) and water (H2O). This is because hydronium ion gained a proton from its base pair, water. Another example of a conjugate acid is ammonium ion (NH4) produced from reactants hydrochloric acid (HCl) and ammonia (NH3).

Which of the following is conjugate acid

Option A and C : A conjugate acid-base pair is a pair of acid and base which are formed by acid donating H⁺ ion to base which accepts it. In the reaction above, HCl is acid and H₂O is a base. H₃O⁺ is the conjugate acid of H₂O and Cl is the conjugate base of HCl. Was this answer helpful?

Which of the following is a conjugated acid pair?

HOCN and OCN^- are an example of a conjugate acid-base pair. The only difference between the two is a proton (H⁺). All acids have a conjugate base and all bases have a conjugate acid.

conjugated acid