Chem 134 Lab Final Exam Questions
& Answers (Grade A+)
How many sig figs does a buret have? -
correct answer ✅3
Definition of titration -
correct answer ✅Analytical determined concentration of a
unknown substance by reacting it with a specific amount of a
known substance.
What is the sig fig rule for log? -
correct answer ✅Must match the mantissa
What is the sig fig rule for adding and subtracting? -
correct answer ✅maintain at least one uncertain figure
What is the sig fig rule for multiplication and division? -
correct answer ✅round to the least precise number
What are the three zero rules? -
correct answer ✅A zero is significant when between 2 nonzero
A zero is never significant before the decimal
A zero is always significant right of the decimal
, Chem 134 Lab Final Exam Questions
& Answers (Grade A+)
Definition of Standardization -
correct answer ✅Preliminary titration to determine the molarity of
the titrant
What is the indicator used in to determine the percent of Mg in the
formula of a compound lab? -
correct answer ✅eriochrom black (EBT)
What is the titrant in the determination of Mg in the formula of a
compound lab? -
correct answer ✅Na2H2edta
What is the typical standardizing agent for HCl? -
correct answer ✅Sodium Carbonate
What is the indicator used for determining the percent of washing
soda? -
correct answer ✅Methyl orange
& Answers (Grade A+)
How many sig figs does a buret have? -
correct answer ✅3
Definition of titration -
correct answer ✅Analytical determined concentration of a
unknown substance by reacting it with a specific amount of a
known substance.
What is the sig fig rule for log? -
correct answer ✅Must match the mantissa
What is the sig fig rule for adding and subtracting? -
correct answer ✅maintain at least one uncertain figure
What is the sig fig rule for multiplication and division? -
correct answer ✅round to the least precise number
What are the three zero rules? -
correct answer ✅A zero is significant when between 2 nonzero
A zero is never significant before the decimal
A zero is always significant right of the decimal
, Chem 134 Lab Final Exam Questions
& Answers (Grade A+)
Definition of Standardization -
correct answer ✅Preliminary titration to determine the molarity of
the titrant
What is the indicator used in to determine the percent of Mg in the
formula of a compound lab? -
correct answer ✅eriochrom black (EBT)
What is the titrant in the determination of Mg in the formula of a
compound lab? -
correct answer ✅Na2H2edta
What is the typical standardizing agent for HCl? -
correct answer ✅Sodium Carbonate
What is the indicator used for determining the percent of washing
soda? -
correct answer ✅Methyl orange
