Question

What is PH of CH3COONa

Answer 1

pH of Sodium ethanoate is low,
it is around 4 to 6.

Answer 2

1 answer · Chemistry 

 Best Answer

sodium acetate is a strong salt 
CH3COONa = CH3COO- + Na+ 

[CH3COO-]= 0.1 

the equillibrium is 

CH3COO- + H2O <=> CH3COOH + OH- 
start 
0.1 
change 
-x . .. . . .. . . . . . . . . . .. . . . .+x. . . . . . . . +x 
at equilibrium 
0.1-x. . . .. . . . . . .. . . .. . .. . .x. . . . . .. . . . x 

Ka for acetic acid = 1.8 x 10^-5 

Kb for acetate = Kw/Ka = 5.6 x 10^-10 =x^2/0.1-x 

x = [OH-]=7.4 x 10^-6 M 

pOH =5.1 

pH = 14 - 5.1 =8.9

hope this help you


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