Elpp! =) (1 Viewer)

[hobozforlife]

Which combinations of solutes form a buffer solution in water?

A) Nitric acid and Potassium nitrate
B) Citric acid and Potassium citrate
C) HCl and NaOH
D) Ammonia and Potassium nitrate

 

[golgo13]

By process of elimination it should be B

 

[hobozforlife]

Explainnn..
Pweeze?

 

[golgo13]

By definition a buffer is a weak acid/base and it's conjugate.
A) nitric strong acid
C) HCl strong acid NaOH strong base
D)Ammonia strong base

 

[someth1ng]

By definition a buffer is a weak acid/base and it's conjugate.
A) nitric strong acid
C) HCl strong acid NaOH strong base
D)Ammonia strong base

Although B is the correct answer, your reasoning in D is incorrect. The problem with D is that they are NOT conjugates of each other and in fact, ammonia is a WEAK base.

 

[golgo13]

my bad i stand corrected lol i was doing it in a rush had other things to do

 

[someth1ng]

my bad i stand corrected lol i was doing it in a rush had other things to do

Yeah, it's alright mate. Everyone makes mistakes, just means that you're human