Chem 12                     Hydrolysis Test 2                                           2003

                                                                       

Name                                                                          Bl                   

 

 

Classify each. Write one or two equations showing what happens when the compound dissolves or

reacts with water. Those that require two reactions have two long lines.

 

 

 

                                                                                                           

1.  AlCl3                                             

 

Acid Salt                                

                       

AlCl3   →        Al3+   +            3Cl-                                                                

 

Al(H2O)63+      ⇌        Al(H2O)5(OH)2+         +   H+             

                                                                                                                                               

                                                             

2.  H3PO4                                           

 

Weak Acid                                                                                                                                                                             

 

H3PO4             ⇌        H+   +    H2PO4-

 

                                                                                                                       

 

3.  Zn(OH)2                                        

 

Weak Base                

 

Zn(OH)2    ⇌ Zn2+    +          2OH-              

                                                                                                                                                                                                                                                           

4.  LiHSO4                                         

 

Acid Salt                                                                                                                                                        

 

LiHSO4           →        Li+       +          HSO4-                                                            

 

HSO4-             ⇌        H+        +          SO42-              

                                                              

                                                                                                                                                                       

                       

5.  SO2                                                        

 

Acid Anhydride         

 

SO2     +          H2O    →        H2SO3                                                                                                                                                            

                                                             

H2SO3             ⇌        H+        +          HSO3-                                                                                                                        

 

 

 

6.  Li2O                                              

 

Basic Anhydride

 

Li2O    +   H2O    →   2LiOH                                                                                                                                                           

 

LiOH  →    Li+   +    OH-                                                        

                                                                                                                                               

 

 

7.  NH3                                               

 

Weak Base                

 

NH3     +          H2O    ⇌        NH4+   +          OH-                                                                                                                                                                

                       

                                                                                                                       

8.  Sr(NO3)2                                       

 

Neutral Salt

 

Sr(NO3)2         →        Sr2+     +          2NO3-

                                               

                                                                                                           

9.  H2SO4                                           

 

Strong Acid

 

H2SO4     →    H+        +          HSO4-                                                                                                                                                

                                                                                                                                               

 

10.  KCN        

 

Basic Salt

 

KCN    →        K+        +          CN-

 

CN-      +          H2O    ⇌        HCN   +          OH-    

                                                                                                                                                                                                                                               

                                                                                                                                                                                               

11.  Ba(OH)2                                      

 

           

Strong Base

 

Ba(OH)2         →        Ba2+     +          2OH-                                                                                                                                      

           

 

12.  FrNH2                                         

 

Basic Salt

 

FrNH2             →        Fr+       +          NH2-                                                                                                                           

                                                 

NH2-    +          H2O    →        NH3     +          OH-