Titrations
Chemistry ⇒ Analytical Chemistry
Titrations starts at 11 and continues till grade 12.
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See sample questions for grade 11
Describe the role of an indicator in a titration.
Describe the steps involved in preparing a standard solution for titration.
During a titration, why is it important to add the titrant slowly near the endpoint?
Explain the difference between endpoint and equivalence point in a titration.
A 0.0250 mol/L solution of HCl is titrated with NaOH. If 20.0 mL of HCl is neutralized by 25.0 mL of NaOH, what is the concentration of NaOH?
A 0.100 mol/L solution of NaOH is used to titrate 50.0 mL of H2SO4. If 25.0 mL of NaOH is required, what is the concentration of H2SO4?
A student titrates 25.0 mL of HCl with 0.100 mol/L NaOH. If 30.0 mL of NaOH is required to reach the endpoint, what is the concentration of HCl?
A student uses 0.0250 L of 0.150 mol/L H2SO4 to neutralize 0.0500 L of NaOH. What is the concentration of NaOH?
The equivalence point in a titration is when: (1) The indicator changes color (2) The moles of titrant equal the moles of analyte (3) The pH is 7 (4) The burette is empty
Which apparatus is most suitable for delivering a precise volume of titrant during a titration? (1) Beaker (2) Burette (3) Pipette (4) Measuring cylinder
Which of the following indicators is best for a strong acid-strong base titration? (1) Methyl orange (2) Phenolphthalein (3) Litmus (4) Thymol blue
Which of the following is a primary standard substance? (1) Sodium carbonate (2) Hydrochloric acid (3) Sodium hydroxide (4) Ammonia
A titration curve for a weak acid and strong base will have an equivalence point at pH ________.
A titration curve plots ________ against volume of titrant added.
In a redox titration, the substance being analyzed is called the ________.
In a titration, the solution being analyzed is called the ________.
True or False: A strong acid-strong base titration always has an equivalence point at pH 7.
True or False: Back titration is used when the reaction between analyte and titrant is too slow or does not go to completion.
True or False: In a titration, the analyte is always in the burette.
True or False: The color change of an indicator always occurs exactly at the equivalence point.
