Kinetics, Equilibria and Acids, Bases and Buffers

Question 1

Rate of reaction

Answer 1

The change in concentration of reactants or products, with unit time.

Question 2

Bronsted-Lowry acid

Answer 2

Proton donor

Question 3

Bronsted-Lowry base

Answer 3

Proton acceptor

Question 4

Strong acid

Answer 4

One which fully dissociates in solution.

Question 5

Weak acid

Answer 5

One which partially dissociates in solution.

Question 6

Equivalence point

Answer 6

The point in a titration at which the reaction is just complete.

Question 7

End point

Answer 7

The point in a titration when the volume of reactant added just causes the colour of the indicator to change.

Question 8

Indicator

Answer 8

Substance that changes colour according to the hydrogen ion concentration of the solution to which it is added.

Question 9

Half equivalence

Answer 9

The point at which half the volume of a strong base is needed to neutralise a weak acid.

Question 10

Buffer solution

Answer 10

One which resists small changes in PH when small amounts of acid or alkali are added to it.