Experiment 8

To observe the reactions of cations


Directions :
Add a small amount of each of the following cations in solution to test tubes
And perform the following tests individually :
a) add two drops of sodium hydroxide , observe then add excess and observe
b) add two drops of aqueous ammonia , observe then add excess and obseve
c) add three drops of sodium carbonate
Mg 2+ , Al 3+ , Ca 2+ , Cr 3+ , Mn 2+ , Fe 2+ , Fe 3+ , Cu 2+ ,
Zn 2+ , Ba 2+ , Pb 2+ , NH4 +


Write ionic equations for all rxns. Observed .


SBA CRITERIA : OBSERVATION , RECORDING AND REPORTING

Correct Observations		12 mks
Equations				6 mks
Table					2 mks