J.1

[Alysia Garcia 1B]

For this problem I'm having a hard time understanding why NH3 would be a base and H2SO3 would be an acid? Could someone help explain?

[joannehaddad]

H2SO3 is one of the strong acids that we need to know. It's a strong acid because it is polyprotic, and dissociates completely. NH3 is a weak base that we also just need to know.

[Priscilla Okaiteye]

Also, NH3 is a base because the Nitrogen atom in it contains a lone pair which can donate its electrons to other atoms, therefore, it can be considered as a base. Or you can think of it as it can accept a proton.