What is the conjugate acid of the weak base NH3?

Normally the conjugate acid of a weak base is a strong acid, however, the conjugate acid of the weak base NH3 is a weak acid, NH4+.

What is the conjugate acid base of NH3?

NH4+
NH4+ is the conjugate acid of NH3.

Does NH3 have a weak conjugate acid?

NH3 is a weak base and it’s conjugate acid NH4+ is strong acid.

How do you find the pH of a weak acid and conjugate base?

When the moles of base added equals half the total moles of acid, the weak acid and its conjugate base are in equal amounts. The ratio of CB / WA = 1 and according to the HH equation, pH = pKa + log(1) or pH = pKa.

Which is the conjugate base of NH3 acid?

The conjugate base of NH3 is NH2- which is known as the azanide anion. A common example of this base is sodamide NaNH2. That is {NH_2}-. It is called “amide” and the pKa is about 35. So ammonia is a very weak acid, and amide a strong base.

Which is stronger H2O or NH3 or NH4 +?

In this equation H2O is the conjugate acid and its corresponding conjugate base is OH− while NH3 and NH4+ represent the base and its conjugate acid pair. Here it is to be noted that the stronger the acid or base, the weaker the conjugate, and the weaker the acid or base, the stronger the conjugate.

Which is stronger a strong base or a weak conjugate?

The conjugate base of a strong acid is a very weak base, and, conversely, the conjugate acid of a strong base is a very weak acid. Figure 7.7. 1 The Relative Strengths of Some Common Conjugate Acid–Base Pairs The strongest acids are at the bottom left, and the strongest bases are at the top right.

Why is acetic acid weaker in water than H 3 O +?

The values of Ka for these acids suggest that acetic acid is a much weaker acid than the H 3 O + ion, which explains why acetic acid is a weak acid in water. Once again, the reaction between the acid and water must convert the acid into its conjugate base and the base into its conjugate acid.