Chapter 10.4

Question 1

What is the procedure of titration

Answer 1

-it is a procedure to determine the concentration of a known reactant in a solution

Question 2

How are titrations formed

Answer 2

• it is performed by adding small volumes of a solution of known concentration(titrant) to a known volume of an unknown concentration(titrand)
• > the titrant is added to the titrand until the equivalence point is achieved

Question 3

What is the equivalence point

Answer 3

-when the number of acid equivalents present in the original solution equals the base equivalents added or vice versa

Question 4

Does the indicator have to be weaker than the acid or base being tested

Answer 4

• yes
• > otherwise, the indicator would be titrated first
• the point at which the indicator changes to its final color is the endpoint
• > it is not the equivalence point

Question 5

What is a buffer solution

Answer 5

-it consists of a mixture of weak acid and its salt(conjugate base/cation) or a weak base and its salt(conjugate acid/anion)

-two examples are CH3COOH and CH3COO-/Na+
or NH3 and NH4+/Cl-