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Which acid is the strongest conjugate base?

Which acid is the strongest conjugate base?

H3PO4 is a triprotic acid (i.e. an acid . having three hydrogen ions to donate to bases in an acid-base reaction) and its final conjugate base is PO43-. The acid with the smallest Ka value and therefore the weakest is phosphoric acid, H3PO4. Therefore, it has the strongest conjugate base as a result.

Which conjugate base is stronger?

The weaker an acid, the stronger is its conjugate base; the stronger an acid, the weaker is its conjugate base. For example, HCl is a very strong acid; it gives up its proton readily; its conjugate base, Cl–, has very little affinity for H+.

Is HCl a strong conjugate acid?

HCl is a strong acid. When it donates a proton, a Cl– ion is produced, and so Cl– is the conjugate base. Adding a proton gives CH3NH3+, its conjugate acid. Adding a proton to the strong base OH– gives H2O its conjugate acid.

What is the weakest conjugate base?

FREE Expert Solution Chloroacetic acid has the highest Ka value, it is the strongest acid among the given. Therefore, chloroacetic acid will have the weakest conjugate base.

How do you know which is a stronger acid?

The bond strength of an acid generally depends on the size of the ‘A’ atom: the smaller the ‘A’ atom, the stronger the H-A bond. When going down a row in the Periodic Table (see figure below), the atoms get larger so the strength of the bonds get weaker, which means the acids get stronger.

Is Ho an acid or base?

Ka Acid Base
5.4 * 10-2 Oxalic acid HO2C2O2-
1.3 * 10-2 Sulfurous acid HSO3 –
1.0 * 10-2 Hydrogen sulfate ion SO4 2-
7.1 * 10-3 Phosphoric acid H2PO4 –

What is the strongest natural acid?

fluoroantimonic acid
The world’s strongest superacid is fluoroantimonic acid, HSbF6. It is formed by mixing hydrogen fluoride (HF) and antimony pentafluoride (SbF5).

Who is the Queen of acid?

Nitric Acid
Nitric Acid (HNO3) is known as Queen of acids.