Analytical Chemistry Final Exam 2025
Questions and Answers
Accuracy - --Answer --The compassion of the average or mean measured
value to the true value
Precision - --Answer --Reproduciblility or spread in measured values
Analytical Chemistry - --Answer --measurement science in chemistry. Can be
qualitative and quantitative
Standard deviation describes - --Answer --Precision
Detection limit - --Answer --The smallest quantity of analyte that is
significantly different from the blank
Systematic - --Answer --The buoyancy correction is an example of how to
account for what type of error?
Larger the ksp
BaF2 ksp=1/7 x 10^-6 - --Answer --Which of the following metal salts is
the most soluble?
....COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 1
, MgF2 ksp=6.6x10^-9
CaF2 ksp=3.9x10^-11
BaF2 ksp=1/7 x 10^-6
3 - --Answer --how many significant figures does 0.00346 have?
The small the ksp the faster it will precipitate
PbS ksp=3x10^-28 - --Answer --Which of the following metals salts will
precipitate first?
MnS ksp=3x10^-11
NiS ksp= 4 x 10^-20
PbS ksp=3x10^-28
It decreases solubility - --Answer --How does the common ion effect change
solubility?
Random Error - --Answer --Uncontrollable error (+/_)
Systematic Error - --Answer --error in one direction
Gross error - --Answer --operator error mistakes, sloppiness
Absolute error - --Answer --error described in the same units as the
measurement
....COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 2
Questions and Answers
Accuracy - --Answer --The compassion of the average or mean measured
value to the true value
Precision - --Answer --Reproduciblility or spread in measured values
Analytical Chemistry - --Answer --measurement science in chemistry. Can be
qualitative and quantitative
Standard deviation describes - --Answer --Precision
Detection limit - --Answer --The smallest quantity of analyte that is
significantly different from the blank
Systematic - --Answer --The buoyancy correction is an example of how to
account for what type of error?
Larger the ksp
BaF2 ksp=1/7 x 10^-6 - --Answer --Which of the following metal salts is
the most soluble?
....COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 1
, MgF2 ksp=6.6x10^-9
CaF2 ksp=3.9x10^-11
BaF2 ksp=1/7 x 10^-6
3 - --Answer --how many significant figures does 0.00346 have?
The small the ksp the faster it will precipitate
PbS ksp=3x10^-28 - --Answer --Which of the following metals salts will
precipitate first?
MnS ksp=3x10^-11
NiS ksp= 4 x 10^-20
PbS ksp=3x10^-28
It decreases solubility - --Answer --How does the common ion effect change
solubility?
Random Error - --Answer --Uncontrollable error (+/_)
Systematic Error - --Answer --error in one direction
Gross error - --Answer --operator error mistakes, sloppiness
Absolute error - --Answer --error described in the same units as the
measurement
....COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 2
