Chem 12                     Hydrolysis Test 1                                           2008

                                                                       

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.  NH3            Weak Base                

 

NH3     +          H2O    ⇌        NH4+   +          OH-    

                       

                                                                                                                       

2.  Ba(NO3)2   Neutral Salt

 

Ba(NO3)2        →        Ba2+     +          2NO3-

                                              

                                                                                                           

3.  HI               Strong Acid

 

HI        →        H+        +          I-                                                                                                                                                                   

 

4.  KHCO3     Basic Salt

 

KHCO3           →        K+        +          HCO3-

 

HCO3- +          H2O    ⇌        H2CO3            +          OH-    

                                                                                                                                                                                               

5.  Ba(OH)2      Strong Base

 

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

                                                                                                           

6.  FeCl3          Acid Salt                                

                       

FeCl3   →        Fe3+   +            3Cl-                                                                

 

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

 

7.  H2CO3        Weak Acid                                                                                                                                                                             

 

H2CO3                        ⇌        H+   +    HCO3-

           

8.  Be(OH)2     Weak Base                

 

Be(OH)2    ⇄ Be2+     +          2OH-                                                                                                  

 

9.  RbHSO4     Acid Salt                                                                                                                                                        

 

RbHSO4         →        Rb+      +          HSO4-                                                            

 

HSO4-             ⇌        H+        +          SO42-  

 

10.  CO2                 Acid Anhydride         

 

CO2     +          H2O    →        H2CO3                                                                                                                                                                       

                                                             

H2CO3                        ⇌        H+        +          HCO3-

 

11.  K2O          Basic Anhydride

 

K2O     →        2KOH                                                                                                                                                

 

KOH   →   K+   +    OH-        

 

12.  CsNH2      Basic Salt

 

CsNH2            →        Cs+      +          NH2-                                                                                                                           

                                                 

NH2-    +          H2O    →        NH3     +          OH-