The ph value o 0.1 M CH3COOH
Answers
Acetic acid is a weak monoprotic acid.
In aqueous solution, it has a pKa value of 4.76. Its conjugate base is acetate (CH3COO−).
A 1.0 M solution has a pH of 2.4, indicating that merely 0.4% of the acetic acid molecules are dissociated.
For acetic acid pKa =4.76 and –log(10)[H+] = pH
4.76 = log(10)(0.1) + 2*pH
=>2*pH=4.76 + 1
=> pH = 5.76/2
=> pH = 2.88
The required pH of 0.1 M solution of acetic acid is 2.88.
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Acetic acid (CH3COOH) is a weak acid.
In aqueous solution,it has a pKa value of 4.76.
It's conjugate base is acetate (CH3COO-).
A 1.0M solution has a pH of 2.4, indicating that merely 0.4% of the acetic acid molecules are dissociated.
For acetic acid pKa = 4.76 and -log (10)[H+] = pH
→4.76=log(10)(0.1)+2*pH
→2*pH=4.76+1
→pH=5.76/2
→pH=2.88
The required pH value of 0.1 M solution of acetic acid (CH3COOH) is 2.88.
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