BuFFed

[DrRichand1]

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AAMC pratice item #102

Which of the following compounds should be added to an aqueous ammonia solution to result in the corresponding buffed solution?

A NH3
B NaNH2
C NH4+OH-
D NH4Cl

Answer: D

I think i'm missing sum basic concept, did the balance equation, but not sure what there looking for/ asking for.

 

[MedPR]

AAMC pratice item #102

Which of the following compounds should be added to an aqueous ammonia solution to result in the corresponding buffed solution?

A NH3
B NaNH2
C NH4+OH-
D NH4Cl

Answer: D

I think i'm missing sum basic concept, did the balance equation, but not sure what there looking for/ asking for.

What is the corresponding buffed solution?

 

[EnginrTheFuture]

What is the corresponding buffed solution?

MedPR... get the hell off of SDN you got a 33 and are freeeeeeee!!!!! 😀

 

[MedPR]

MedPR... get the hell off of SDN you got a 33 and are freeeeeeee!!!!! 😀

Trying to give back to the forums that allowed me to get a 33! 👍

 

[EnginrTheFuture]

Trying to give back to the forums that allowed me to get a 33! 👍

Fair enough. Congrats again. 👍

 

[kasho11]

👍


And to make a buffer solution you need the corresponding acid/base component added as a salt. So in this example NH3 is considered a weak base and so you want to add its conjugate acid (NH4+) as a salt (NH4-Cl). No balancing is needed in these buffer type questions, unless they specifically say something about stoichiometric proportions.

 

[Morsetlis]

MedPR... get the hell off of SDN you got a 33 and are freeeeeeee!!!!! 😀

Well, assuming he got into med school, he would have nothing to do right now 😉

 

[MedPR]

Well, assuming he got into med school, he would have nothing to do right now 😉

Haven't even applied yet 😳