HF 완충용액. HF + NaF

HF 완충용액. HF + NaF

 

 

Consider the buffer system of hydrofluoric acid, HF, and its salt, NaF:

HF(aq) + H2O(l) ⇌ H3O^+(aq) + F^-(aq)

 

 

1. Why is the salt of the weak acid needed?

Check all that apply.

a. to neutralize added H3O^+

b. to provide the conjugate acid

c. to provide the conjugate base

 

 

2. Which substance neutralizes the addition of OH^-?

a. hydrofluoric acid, HF

b. water, H2O

c. the salt, NaF

d. the hydronium ion, H3O^+

 

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답: 1. a, c

답: 2. a

 

 

 

[ 관련 글 https://ywpop.tistory.com/4319 ] 강산 또는 강염기를 가했을 때, 완충용액에서 일어나는 현상.

 

[ 관련 글 https://chem.libretexts.org/Bookshelves/Physical_and_Theoretical_Chemistry_Textbook_Maps/Supplemental_Modules_(Physical_and_Theoretical_Chemistry)/Acids_and_Bases/Buffers/Introduction_to_Buffers ] Introduction to Buffers.

 

 

 

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