Volumetric Analysis
Chemistry ⇒ Analytical Chemistry
Volumetric Analysis starts at 11 and continues till grade 12.
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Define the term 'aliquot' in the context of volumetric analysis.
Describe the function of an indicator in acid-base titrations.
Describe the role of a buffer solution in a titration involving a weak acid and a strong base.
Explain the difference between endpoint and equivalence point in a titration.
A 0.250 g sample of KHP (molar mass = 204.2 g/mol) is titrated with NaOH. If 15.0 mL of NaOH is required to reach the endpoint, what is the molarity of the NaOH solution?
A burette reading before titration is 0.50 mL and after titration is 25.30 mL. What is the volume of titrant used?
A solution of Fe2+ is titrated with 0.0200 M KMnO4. If 25.0 mL of KMnO4 is required, how many moles of KMnO4 were used?
A student needs to prepare 250 mL of 0.100 M NaCl solution. How many grams of NaCl (molar mass = 58.44 g/mol) are required?
Which apparatus is most commonly used to deliver a precise volume of titrant during a titration? (1) Pipette (2) Burette (3) Volumetric flask (4) Beaker
Which of the following errors can lead to an overestimation of the analyte concentration in a titration? (1) Overshooting the endpoint (2) Using a dirty burette (3) Not rinsing the pipette (4) All of the above
Which of the following indicators is most suitable for the titration of a strong acid with a strong base? (1) Methyl orange (2) Phenolphthalein (3) Bromothymol blue (4) Starch
Which of the following is a primary standard substance? (1) Sodium carbonate (2) Hydrochloric acid (3) Sodium hydroxide (4) Ammonium chloride
A titration of 50.0 mL of 0.200 M acetic acid (CH3COOH) with 0.100 M NaOH requires ________ mL of NaOH to reach the equivalence point.
In a titration, the analyte is the solution of ________ concentration.
In a titration, the solution of known concentration is called the ________.
The equivalence point in a titration is the point at which ________.
True or False: EDTA is commonly used in complexometric titrations to determine the concentration of metal ions.
True or False: The endpoint of a titration is always the same as the equivalence point.
True or False: The molarity of a solution is defined as the number of moles of solute per liter of solution.
True or False: The standard solution is always placed in the burette during a titration.
