Titration Calculations
Chemistry ⇒ Acids, Bases, and Salts
Titration Calculations starts at 10 and continues till grade 12.
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During a titration, why is it important to swirl the flask while adding titrant?
Explain the difference between a primary standard and a secondary standard in titration.
Explain why a weak acid-strong base titration has a higher pH at the equivalence point than a strong acid-strong base titration.
The balanced equation for the reaction between HCl and NaOH is: HCl + NaOH → NaCl + H2O. What is the mole ratio of HCl to NaOH?
A 0.0500 M solution of HCl is titrated with 0.100 M NaOH. If 20.0 mL of HCl is used, what volume of NaOH is required to reach the endpoint?
A 0.100 M solution of Ba(OH)2 is used to titrate 50.0 mL of 0.200 M HCl. What volume of Ba(OH)2 is required?
A 0.100 M solution of H2SO4 is titrated with 0.100 M NaOH. If 25.0 mL of H2SO4 is used, what volume of NaOH is required for complete neutralization?
A 0.100 M solution of HCl is titrated with 0.100 M NaOH. If 20.0 mL of HCl is used, how many moles of NaOH are required to reach the endpoint?
The titration of a weak base with a strong acid will have an equivalence point pH that is:
(1) Less than 7
(2) Equal to 7
(3) Greater than 7
(4) Cannot be determined
Which of the following best describes the equivalence point in a titration?
(1) The point where the indicator changes color
(2) The point where moles of acid equal moles of base
(3) The point where the pH is 7
(4) The point where the titrant is first added
Which of the following errors would cause the calculated concentration of the analyte to be too high?
(1) Overshooting the endpoint
(2) Using a dirty burette
(3) Reading the burette from above eye level
(4) All of the above
Which of the following indicators is most suitable for a strong acid-strong base titration?
(1) Methyl orange
(2) Phenolphthalein
(3) Bromothymol blue
(4) Litmus
A titration curve plots ________ against volume of titrant added.
In a titration, if the indicator changes color before the equivalence point, the calculated concentration of the analyte will be ________ (higher/lower) than the true value.
In a titration, the solution being analyzed is called the ________.
In a titration, the solution of known concentration is called the ________.
A titration curve for a weak acid and strong base typically has a buffer region. True or False?
The indicator phenolphthalein changes color at a pH range of approximately 8.2 to 10.0. Is it suitable for titrating a strong acid with a weak base?
The pH at the equivalence point of a strong acid-strong base titration is always 7. True or False?
True or False: The equivalence point in a titration is always the same as the endpoint.
