WorksheetsKa Kb
Total questions: 9
Worksheet time: 27mins
Acetic Acid is a weak monoprotic acid. It's concentration is 0.20M and it's equilibrium concentration of H+ ions is 0.0019M. Calculate it's Ka value.
1.8x10 -5
1.8x10 -15
.0019
5.56x10 -10
Formic Acid is a weak monoprotic acid. It's initial concentration is 0.10M and it's equilibrium concentration of H+ ions is 0.0042M. Calculate it's Ka value.
.150
12.56x10 -6
1.8x10 -4
None of these are correct
Isobutlyamine is a weak base. It's initial concentration is 0.55M and it's equilibrium concentration of OH- ions is 0.0040M. Calculate it's Kb value.
.055
4.0x10 -3
1.6x10 -5
3.1x10 -4
Gallic Acid is a weak monoprotic acid. It's concentration is 0.280M and it's equilibrium concentration of H+ ions is 0.0033M. Calculate it's pH value.
3.9x10 -5
4.96
2.48
.280
Uric Acid is a weak monoprotic acid. It's initial concentration is 0.110M and it's equilibrium concentration of H+ ions is 0.034M. Calculate the final concentration of Uric acid.
.011
.034
.076
1.47
Acetic Acid is a weak monoprotic acid. It's concentration is 0.20M and it's Ka value is 1.8x10 -5. Calculate it's pH value.
.698
2.72
11.28
None of the answers are correct
Trimethyamine is a weak base. It's concentration is 0.390M and it's equilibrium concentration of OH- ions is 0.0044M. Calculate it's pH value.
2.36
11.6
.410
None of the above are correct
Ammonia is a weak base. It's concentration is 0.150M and it's Kb value is 1.7x10 -5. Calculate it's pH value.
2.80
11.2
Both answers are correct
None of the above are correct
Butylamine is a wack base. It's concentration is 0.230M and it's equilibrium concentration of OH- ions is 8.6x10 -6M. Calculate it's Kb value and pOH.
3.2x10 -10 and 9.49
8.6x10 -10 and 9.07
3.2x10 -10 and 4.93
None of the above
