FURTHER ASPECTS OF EQUILIBRIA, TITRATION GRAPHS, INDICATORS

What is Kw?

• ionic product of water

• acid dissociation constant

• equilibrium constant

• pH

What is -log [H+] ?

• pKa

• 14-pOH

• pOH

• Ka

Which one is the weakest acid?

• pKa 1.27

• pKa 6.27

• pKa 2.27

• pKa 3.27

what is the term used when indicator changes colour?

• equivalence point

• end point

• titration point

• enough point

which one is suitable to be used for strong base and weak acid titration?

• phenolphthalein

• methyl orange

• bromophenol blue

• methyl red

what is the equivalence pH point for strong acid and strong base?

• 7

• 5

• 9

• 11

what is the equivalence pH point for strong acid and weak base?

• 5

• 7

• 9

• 11

what is the equivalence pH point for weak acid and strong base?

• 5

• 7

• 9

• 11

What is the sharp decrease for strong acid and strong base?

• pH 10.5-3.5

• pH 7.5-3.5

• pH 10.5-5.5

• No sharp decrease

What is the sharp decrease for strong acid and weak base?

• pH 10.5-3.5

• pH 7.5-3.5

• pH 11- 7.5

• No sharp decrease