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Hydrolysis of Salts

Total questions: 13

Worksheet time: 7mins

Name
Class
Date
1.

Which acids are hydrogen ion donors?

a)

Arrhenius

b)

Bronsted- Lowry

c)

Lewis

2.

Which bases are proton acceptors?

a)

Arrhenius

b)

Bronsted- Lowry

c)

Lewis

3.

Which acids are electron pair acceptors?

a)

Arrhenius

b)

Bronsted- Lowry

c)

Lewis

4.

Which bases are OH- donor?

a)

Arrhenius

b)

Bronsted- Lowry

c)

Lewis

5.

Which of the following DO NOT describe a strong base?

a)

produce strong conjugate acid

b)

completely dissociated in aqueous solution

c)

ionization reaction is favored 

d)

very high pH

6.

Which of the following is true about weak acids?

a)

ionization equilibrium lies far to the left.

b)

ionization is favored at equilibrium

c)

completely dissociate to ions in solution

d)

forms also weak conjugate base

7.

Which of the following is the correct equilibrium expression of the hypothetical weak acid?

HYO(aq) + H2O(l) ⇔ H3O+(aq) + YO- (aq)

a)

[H3O+ ] [ YO-] / [HYO]

b)

[H3O+ ] [ YO-

c)

[H3O+ ] [ YO-] / [HYO][H2O]

d)

[HYO]/ [H3O+ ] [ YO-

8.

Determine what will be the nature of the  salt that will be produced in the neutralization reaction of HBr + NaOH?

a)

neutral salt

b)

basic salt

c)

acidic salt

9.

Determine what will be the nature of the  salt that will be produced in the neutralization reaction of KOH + H2CO3?

a)

neutral salt

b)

basic salt

c)

acidic salt

10.

Determine what will be the nature of the  salt that will be produced in the neutralization reaction of NH3 + H2CO3?

(KNH3 = 1.8 x 10-5, KH2CO3  = 4.4 x 10-7)

a)

neutral salt

b)

basic salt

c)

acidic salt

11.

Determine what will be the nature of the  salt that will be produced in the neutralization reaction of HNO3 + NH3?

a)

neutral salt

b)

basic salt

c)

acidic salt

12.

Which of the following given hypothetical acid with corresponding Ka value will have the lowest pH?

a)

HA-Ka = 5.6 x10 -1

b)

HB-Ka = 7.4 x10 -4

c)

HC-Ka = 8.2  x10 -4

d)

HD-Ka = 9.7 x10 -3

13.

Phenolphthalein (phph) is a colorless base indicator whereas methyl orange (MO) is a red acid indicator which  . A water sample was taken from a ground water source. 2 drops of phph was introduced to the sample and there was no change in color occurred. 2 drops MO was also mix in the sample and in turned light yellow. What could be the best conclusion for this test?

a)

the water sample is acidic

b)

the water sample is basic

c)

the water sample is neutral

d)

the test in not conclusive