Perk Learning Lab, MGCCC

Created by Tara L. Moore

 

GENERAL CHEMISTRY,  5th ed., Whitten, Davis & Peck

 

Chapter 10 Review Quiz

 

MATCHING

  1. Bronsted-Lowery Acid             h. Lewis Acid               o. Spectator ions
  2. Bronsted-Lowery Base             i. Lewis base                p. Conjugate base
  3. Amphoterism                                        j. Conjugate acid
  4. Conjugate acid-base pair                      k. Strong electrolytes
  5. Dissociation                                          l. Weak electrolytes
  6. Ionization                                              m. Autoionization
  7. Coordinate covalent bond                     n. Protonic acid

 

1. Any species that can accept a share in an electron pair to form a coordinate covalent bond.

2. The ability of a substance to act as either an acid or a base.

3. In aqueous solution, the process in which a molecular compound reacts with water to form ions.

4. Both shared electrons are furnished by the same species

5. A proton donor.

6. A reactant and product that differ by a proton, H+

7. An ionization reaction between identical molecules

8. A proton acceptor.

9. Any species that can make available a share in an electron pair to form a coordinate covalent bond.

10. In aqueous solution, the process in which a solid ionic compound separates into its ions.

10a. Produced when an acid donates a proton

10b. Produced when a base accepts a proton

 

 

MULTIPLE-CHOICE

11. Which is the Bronsted-Lowery acid and which is the Bronsted-Lowery base?

 

a) NH3  + HCl à NH4Cl

 

b) HCHO2 + PO4-3 à CHO-2 + HPO4-2

 

c) NH4+ + CN- à HCN + NH3

 

d) (CH3)3­N + H2O à (CH3)3NH+ + OH-

 

12. Label each of the following as a strong or weak acid. In each case, write the formula of its conjugate base.

a) HPO4-2                                 b) HNO2                                  c) H2SO4

 

 

13. Give the products in the following acid-base reactions. Identify the acid-base pairs.

 

a) NH2- + H2O à

 

b) NH4+ + CN- à

 

14. Label the following as strong soluble bases, insoluble bases, strong acids or weak acids.

a) Zn(OH)2                   b) NH3             c) H2SO4          d) HI                e) H2CO3

 

15.Circle the stronger acid of each pair.

a) H2O and H3O+                     b) NH4+ and NH3                     c) HSO3- and H2SO3

 

16. List the following acids in order of INCREASING strength:

a)      sulfurous, phosphoric and perchloric

b)      HIO3, HIO2, HIO, and HIO4

 

17. Classify each substance as a strong or weak electrolyte and a strong acid, weak acid, strong base or weak base.

 a) (COOH)2    b) HI    c) LiOH           d) CH3NH2

 

18. Write a balanced 1) formula unit, 2) total ionic, and 3) net ionic equation for the following :

a)  HCl  +  Ca(OH)2 à

 

b)  H3PO4  +  Ba(OH)2 à

 

c)  HNO3  +  NH3  à

 

19) Complete the following equations:

a) FeO  +  ______  à  Fe(NO3)2  +  H2O

 

b) NaOH  +  _______ à  Na2HPO4  +  ________

 

20) Strong acids, weak acids and weak bases ______ because they are ______ compounds.

a)      dissociate, molecular

b)      dissociate, ionic

c)      ionize, molecular

d)      ionize, ionic

 

21) Strong soluble bases ______ because they are ______ compounds.

a)      dissociate, molecular

b)      dissociate, ionic

c)      ionize, molecular

d)      ionize, ionic

 

 

 

 

 

 

 

 

 

ANSWERS

  1. h
  2. c
  3. f
  4. g
  5. a
  6. d
  7. m
  8. b
  9. I
  10. e

10a. p

10b. j

  1. a) HCl = acid; NH3 = base       b) HCHO2 = acid; PO4-3 = base

c) NH4+ = acid; CN- = base     d) H2O – acid; (CH3)3N = base

  1.  a) weak; PO4-3                        b) weak; NO2  -                       c) strong; HSO4-
  2.  

a) NH2- + H2O à NH3  + OH-

  base       acid      acid     base

 

b) NH4+ + CN- à  NH3 +  HCN

   acid        base      base     acid

 

14. a) insoluble base       b) weak base    c) strong acid      d) strong acid             e) weak acid

15.  a) H3O+                 b) NH4+           c) H2SO3

16. a) HClO4 > H2SO4 > H3PO4

      b) HIO4 > HIO3 > HIO2 > HIO

17. a) weak electrolyte and weak acid b) strong electrolyte and strong acid     

      c) strong electrolyte and strong base            d) weak electrolyte and weak base

 

18.

a)         2HCl  +  Ca(OH)2 à CaCl2 + 2H2O

            2H+ + 2Cl-  + Ca+2  + 2OH- à Ca+2  + 2Cl-  + 2H2O

            H+  +  OH- à  H2O

 

b)         2H3PO4  +  3Ba(OH)2 à Ba3(PO4)2 + 6 H2O

            2H3PO4  + 3Ba+2  + 6OH-1 à  Ba3(PO4)2  + 6H2O

 

c)         HNO3  +  NH3  à  NH4NO3

            H+ + NO3-  + NH3  à  NH4+  + NO3-

            H+  + NH3 à NH4+

 

19)

a) FeO  +  2HNO3  à  Fe(NO3)2  +  H2O

 

b) 2NaOH  +  H3PO4 à  Na2HPO4  +  2H2O

20) c

21) b