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Grade: 12
        

determine mass of sodium acetate and volumes of 3M HCN solution required for preparing a 250ml buffer solution of pH = 5.3 with salt concentration 0.5M.  Ka = 2*10-5.

9 years ago

Answers : (1)

SAGAR SINGH - IIT DELHI
879 Points
							

Dear student,

An acidic buffer solution is simply one which has a pH less than 7. Acidic buffer solutions are commonly made from a weak acid and one of its salts - often a sodium salt.

A common example would be a mixture of ethanoic acid and sodium ethanoate in solution. In this case, if the solution contained equal molar concentrations of both the acid and the salt, it would have a pH of 4.76. It wouldn't matter what the concentrations were, as long as they were the same.

 

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Askiitians Expert

Sagar Singh

B.Tech, IIT Delhi

7 years ago
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