Chem 12                     Hydrolysis Test 3                                           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.         NaHSO4                                                         

 

Acid Salt                                                                                                                                                        

 

NaHSO4         →        Na+      +          HSO4-                                                            

 

HSO4-             ⇌        H+        +          SO42-                                                                                                                                                                                                                                                                                                                                                                           

2.         SO3                                                                                 

 

Acid Anhydride         

 

SO3     +          H2O    →        H2SO4                                                                                                                                                            

                                                             

H2SO4    →     H+        +          HSO4-                                                                                                                                                            

                                                             

3.         Sr(OH)2                                                          

 

Strong Base

 

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

 

4.         KNH2                                                             

 

Basic Salt

 

KNH2              →        K+        +          NH2-                                                                                                                           

                                                 

NH2-    +          H2O    →        NH3     +          OH-                                                                                                                                                                

                                                            

5.         Fr2O                                                               

 

Basic Anhydride

 

Fr2O    +   H2O     →  2FrOH                                                                                                                                                           

 

FrOH  →    Fr+   +    OH-                                                                                                                                                                                                                                                                  

 

6.         NH3                                                                

 

Weak Base                

 

NH3     +          H2O    ⇌        NH4+   +          OH-                                                                                                                                                                

           

7.         FeCl3                                                              

 

Acid Salt                                

                       

FeCl3   →        Fe3+   +            3Cl-                                                                

 

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

                                                              

8.         H3C6H5O7                                                      

 

Weak Acid                                                                                                                                                                             

 

 

H3 C6H5O7                 ⇌        H+   +    H2 C6H5O7-

                                                                                                                                                                                                                                                                                                                        

 

9.         Mo(OH)2                                                        

 

Weak Base                

 

Mo(OH)2    ⇄            Mo2+    +          2OH-              

                                                                                                                                                                                                           

                                                                                                                       

10.       Ca(ClO4)2                                                      

 

Neutral Salt

 

Ca(ClO4)2       →        Ca2+    +          2ClO4-

                                                                                                                                                                                                           

                                                                                                           

11.       HClO4                                                            

 

Strong Acid

 

HClO4     →    H+        +          ClO4-                                                                                                                                                                                                                                                                                                              

 

12.       Na3PO4                                                           

 

Basic Salt

 

Na3PO4            →        3Na+    +          PO43-

 

PO43-   +          H2O    ⇌        H PO42-           +          OH-