CHEM 2 LAB FINAL EXAM WITH
VERIFIED QUESTIONS AND
ANSWERS GRADED A+ (2026)
What were the contact hazards in the Weak Organic Acid lab? - answer-Several of the
corrosive acid unknowns and NaOH (dangerous to eyes)
What was the purpose of the Weak Organic Acid lab? - answer-To identify a weak acid by
finding its equivalent weight and dissociation constant
What instrument were you introduced to in the Weak Organic Acid lab? - answer-The pH
meter
True or False: All the acids in the Weak Organic Acid lab were monoprotic acids,
meaning the equivalent weight and molar mass of the acids are the same. - answer-True
What is the equilibrium constant for the equation in the Weak Organic Acid lab? -
answer-Ka = [H3O]+[A]-/[HA]
In the Weak Organic Acid lab, what ion acts as a spectator ion? - answer-Sodium ion
True or False: At the halfway point, Ka = [H3O+]. - answer-True
True or False: At the halfway point, pKa = pH. - answer-True
True or False: A titration is a neutralization reaction. - answer-True
What was the indicator used in the Weak Organic Acid lab? - answer-Phenolphthalein
, True or False: At the equivalence point, the moles of acid are not equal to moles of
base. - answer-False, they are equal.
What are weak acids? - answer-Acids that do not ionize completely
Ionization depends on the the acid ___________ and acid ____________ constant. -
answer-concentration, equilibrium
While using the balance in part 1 of the Weak Organic Acid Lab, the mass is recorded
________ decimal places. - answer-three
You should always read a buret _______ decimal places. - answer-Two
True or False: You should always add water to acid. - answer-False! You should add acid
to water
What solutions are extremely corrosive in the Quantitative Analysis lab? - answer-
Concentrated solutions of acids and bases
What solution is extremely flammable in the Quantitative Analysis lab? - answer-DMG
In the Quantitative Analysis lab, which cations belong in Group 1 - Insoluble Chlorides?
- answer-Ag+ and Hg2+
In the Quantitative Analysis lab, which cations belong in Group 2 - Insoluble
Hydroxides? - answer-Fe3+ and Mn 2+
In the Quantitative Analysis lab, which cations belong in Group 3 - Complexed
Ammines? - answer-Cu2+ and Ni 2+
VERIFIED QUESTIONS AND
ANSWERS GRADED A+ (2026)
What were the contact hazards in the Weak Organic Acid lab? - answer-Several of the
corrosive acid unknowns and NaOH (dangerous to eyes)
What was the purpose of the Weak Organic Acid lab? - answer-To identify a weak acid by
finding its equivalent weight and dissociation constant
What instrument were you introduced to in the Weak Organic Acid lab? - answer-The pH
meter
True or False: All the acids in the Weak Organic Acid lab were monoprotic acids,
meaning the equivalent weight and molar mass of the acids are the same. - answer-True
What is the equilibrium constant for the equation in the Weak Organic Acid lab? -
answer-Ka = [H3O]+[A]-/[HA]
In the Weak Organic Acid lab, what ion acts as a spectator ion? - answer-Sodium ion
True or False: At the halfway point, Ka = [H3O+]. - answer-True
True or False: At the halfway point, pKa = pH. - answer-True
True or False: A titration is a neutralization reaction. - answer-True
What was the indicator used in the Weak Organic Acid lab? - answer-Phenolphthalein
, True or False: At the equivalence point, the moles of acid are not equal to moles of
base. - answer-False, they are equal.
What are weak acids? - answer-Acids that do not ionize completely
Ionization depends on the the acid ___________ and acid ____________ constant. -
answer-concentration, equilibrium
While using the balance in part 1 of the Weak Organic Acid Lab, the mass is recorded
________ decimal places. - answer-three
You should always read a buret _______ decimal places. - answer-Two
True or False: You should always add water to acid. - answer-False! You should add acid
to water
What solutions are extremely corrosive in the Quantitative Analysis lab? - answer-
Concentrated solutions of acids and bases
What solution is extremely flammable in the Quantitative Analysis lab? - answer-DMG
In the Quantitative Analysis lab, which cations belong in Group 1 - Insoluble Chlorides?
- answer-Ag+ and Hg2+
In the Quantitative Analysis lab, which cations belong in Group 2 - Insoluble
Hydroxides? - answer-Fe3+ and Mn 2+
In the Quantitative Analysis lab, which cations belong in Group 3 - Complexed
Ammines? - answer-Cu2+ and Ni 2+
