Which of the following is an example of a Brønsted-Lowry acid-base conjugate pair?

CuCl2 / CuCl

NH4+ / NH3

H3O+ / Br−

CH3CO2H / OH−
@Sweetburger i dont even know were to start

Question

Which of the following is an example of a Brønsted-Lowry acid-base conjugate pair?
		
CuCl2 / CuCl
		
NH4+ / NH3
		
H3O+ / Br−
		
CH3CO2H / OH−
@Sweetburger i dont even know were to start

rhondasommer · Answer

i think its A? but i couldnt tell you why

sweetburger · Answer

Bronsteed-Lowry acid-base conjugate would be NH4+/NH3. NH4+ is the acid and proton donor. The resulting conjugate base is NH3.

rhondasommer · Answer

ohhh okay i think i understand? acid base conjujate is NH4+? but why?

sweetburger · Answer

Bronsted Lowry definition states acids are proton donors. Bases are proton acceptors. NH4+ gives off a proton (H+) and becomes the conjugate base NH3. Notice that now since NH3 is a base it is a proton acceptor? That means if it received a proton (H+) it would become NH4+ an acid again.

rhondasommer · Answer

ohhhhhhhhh

rhondasommer · Answer

mind=blown