Q.1
Choose the CORRECT definition of acidimetry
  • the determination of the concentration of an acid
  • the determination of the concentration of a base
  • the determination of the amount of an acid
  • the determination of the amount of a base
Q.2
What does pH measure?
  • Amount of Oxygen Ions
  • Amount of Hydrogen Ions
  • The amount of salt in a solution
  • The density
Q.3
If phenolphthalein turns bright pink, it indicates
  • an acid
  • a base
  • a neutral
Q.4
Forms hydroxide ions in water
  • Acids
  • Bases
  • All
Q.5
Why do we use water to wash the solution from the burette into the flask
  • To ensure accuracy (all solution reacts)
  • To dilute the reagents
  • To help the reaction go faster
  • To see the colour of the indicator better
Q.6
What is the white tile for in titration?
  • To help clearly see the colour change
  • To protect the conical flask
  • To add extra height
  • To assist the reaction
Q.7
What indicator is commonly used in titrations?
  • Phenolphthalein
  • Bromothymol Blue
  • Litmus
  • Universal
Q.8
Ascorbic acid, H2C6H6O6(s), is a diprotic acid with K1 = 7.9 × 10⁻⁵ and K2 = 1.6 × 10–In a 0.M aqueous solution of ascorbic acid, which of the following species is present in the lowest concentration?
  • H3O+(aq)
  • H2C6H6O6(aq)
  • HC6H6O6-(aq)
  • C6H6O62-(aq)
0 h : 0 m : 1 s