#1
What is titration?
A method to determine the concentration of a solution using a standard solution of known concentration.
ExplanationQuantitative analysis method for concentration determination.
#2
Which indicator is commonly used in an acid-base titration?
Phenolphthalein
ExplanationCommonly used acid-base indicator for titrations.
#3
What is the primary role of a burette in titration?
To measure the volume of the titrant added to the analyte solution
ExplanationVolume measurement instrument.
#4
What is the function of a conical flask in titration?
To contain the analyte solution
ExplanationHolding vessel for the sample.
#5
What is the endpoint of a titration?
When the solution changes color
ExplanationPoint indicating completion of reaction.
#6
What is the primary standard in a titration?
The solution of known concentration
ExplanationSolution used for direct measurement.
#7
What is the equivalence point in a titration?
The point where the moles of acid equal the moles of base
ExplanationBalance point of reactants.
#8
Which type of titration is used to determine the concentration of a reducing agent?
Redox titration
ExplanationTitration involving oxidation-reduction reactions.
#9
Which factor can affect the accuracy of a titration?
Temperature
ExplanationEnvironmental condition influencing results.
#10
What is the purpose of standardization in titration?
To determine the concentration of the titrant solution
ExplanationEstablishing concentration of titrant.
#11
What is the purpose of back titration?
To determine the concentration of an unknown solution that reacts slowly
ExplanationMethod for slow reacting solutions.
#12
What does the term 'titration error' refer to?
The difference between the actual endpoint and the observed endpoint
ExplanationDiscrepancy between actual and observed endpoint.
#13
What is the difference between direct and reverse titration?
Direct titration starts with an excess of analyte, while reverse titration starts with an excess of titrant.
ExplanationApproach based on starting reagent excess.
#14
What is the purpose of using a blank titration?
To subtract any background signal from the titration curve
ExplanationEliminating background interference.
#15
Which indicator is commonly used in a complexometric titration of calcium ions?
Eriochrome black T
ExplanationIndicator for metal ions.
#16
What is the primary advantage of using a digital burette in titration?
It allows for more accurate volume measurements
ExplanationPrecision in volume dispensing.