Answer to Question #320872 in Organic Chemistry for nicole

Question

The ammonium ion (pKa = 9.25) has a lower pKa than the methyl ammonium ion (pKa = 10.66).

Explain which of the two species is the stronger base is

Answer 1

Ammonium ion (NH4+) has a pKa of 9.2.

The ammonium ion (NH4+, pKa = 9.25) has a lower pKa than the methylammonium ion (CH3NH3+, pKa = 10.66). Which is the stronger base, ammonia (NH3) or methylamine (CH3NH2)? Explain. Methylammonium ion ( ) is a weaker acid than ammonium ion ( ).