NEW
Font size
Worksheets12th tm chemistry (4/6/21)
Total questions: 10
Worksheet time: 7mins
The buffer solution is able to maintain pH by some events, except . . .
The addition of a little acid
The addition of a little base
Dilution
Addition of water
The addition of excess acid
The following mixture of solutions that form a buffer solution is . . .
50 mL CH3COOH 0.2 M and 50 mL NaOH 0.1 M
50 mL CH3COOH 0.2 M and 100 mL NaOH 0.1 M
50 mL HCl 0.2 M and 100 mL NH4OH 0.1 M
50 mL HCl 0.2 M and 50 mL NH4OH 0.1 M
50 mL HCl 0.2 M and 100 mL NaOH 0.1 M
The pH solution that consist of CH3COOH 0.01 M and CH3COONa 0.01 M with Ka = 10-5 is . . .
4
5
6
8
9
The buffer solution is able to maintain pH by some events, except . . .
The addition of a little acid
The addition of a little base
Dilution
Addition of water
The addition of excess acid
The Henderson-Hasselbalch equation explains the relationship between
pH and pOH
pH and logKa
pH and pKa
pOH and pKa
The acid dissociation constant is denoted by
pH
Ka
pOH
Kd
The pH is a measure of the hydrogen ion concentration of an
ionic solution
aqueous solution
homogenous solution
heterogenous solution
A buffer solution contains 0.36 M sodium acetate (CH3COONa) and 0.45 M acetic acid (CH3COOH), pKa = 4.8. What is the pH of this buffer solution?
4.7
6.3
5.5
4.2
