In which one of the following solutions will acetic acid have the lowest percent
ID: 503018 • Letter: I
Question
In which one of the following solutions will acetic acid have the lowest percent ionization?
Question 12 options:
0.1 M CH3COOH dissolved in 0.1 M NaOH
0.1 M CH3COOH plus 0.2 M CH3COONa
0.1 M CH3COOH plus 0.1 M CH3COONa
0.1 M CH3COOH dissolved in 0.2 M NaOH
0.1 M CH3COOH
Please show all work and explain
1)0.1 M CH3COOH dissolved in 0.1 M NaOH
2)0.1 M CH3COOH plus 0.2 M CH3COONa
3)0.1 M CH3COOH plus 0.1 M CH3COONa
4)0.1 M CH3COOH dissolved in 0.2 M NaOH
5)0.1 M CH3COOH
Please show all work and explain
Explanation / Answer
reaction for ionisation of acetic acid is:
CH3COOH <—> CH3COO- + H+
so, adding NaOH will react with H+ and ionisation will increase
Adding CH3COO- will favour backward reaction and ionisation will decrease
More the concentration of CH3COO-, lesser will be the ionisation
Answer:
2)0.1 M CH3COOH plus 0.2 M CH3COONa