*What is the ratio of acetate to acetic acid in a 0.1 M buffer at pH 4.75? *What happens when 5 mL...

Question

*What is the ratio of acetate to acetic acid in a 0.1 M buffer at pH 4.75?
*What happens when 5 mL 0.1 M HCl is added to 50 mL of this buffer?
*What happens when 5 mL 0.1 M HCl is added to 50 mL water?

Robert · Accepted Answer

SolutionTTs300513_44397_17
pH =pKa  + log [Ac
-]      FROM HENDERSON HASSLEBACH EQUATION                               
                          [HAc] 
                                                         [Ac-] =  Acetate ion concentration 
                                                         [HAc] = Acetic acid concentration 
 
From standard literature we know, pKa (Acetic acid) = 4.75 
Putting the values, we have,  4.75 = 4.

What is the ratio of acetate to acetic acid in a 0.1 M buffer at pH 4.75? What happens when 5 mL 0.1 M HCl is added to 50 mL of this buffer? *What happens when 5 mL 0.1 M HCl is added to 50 mL...

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*What is the ratio of acetate to acetic acid in a 0.1 M buffer at pH 4.75? *What happens when 5 mL 0.1 M HCl is added to 50 mL of this buffer? *What happens when 5 mL 0.1 M HCl is added to 50 mL...

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What is the ratio of acetate to acetic acid in a 0.1 M buffer at pH 4.75? What happens when 5 mL 0.1 M HCl is added to 50 mL of this buffer? *What happens when 5 mL 0.1 M HCl is added to 50 mL...