Practical test, group work activity
-the importance of reporting results.

Group work is very important in science. Sharing accurate results allows for people to increase their knowledge and reach accurate conclusions. In this experiment you will work with a partner to identify 7 solutions.

You will be able to communicate in writing only. This can be in note form or email. Your laptop is a legitimate resource tool and should be used to increase your knowledge acquisition and communication with your partner.

You are provided with a resource page that you can use.


Identify 7 solutions labelled A,B,C,D,E,F,G. as Na2CO3, K2CO3 citric acid, Pb(NO3)2, Ca(NO3)2, AgNO3, Fe(NO3)2

Select your seven solutions offered to you in spary bottles and either group 1 chemicals or group 2 chemicals. Your partner will also select the seven solutions and the group of chemicals that you have not selected.
eg. If you take group 1 chemicals then your partner must take group two chemicals to test the seven solutions with.

You may set up your bunsen burner when you are ready if you need to.

Complete the table below and offer an explanation of the reaction that has taken place or by giving the name of one of the new products.

Eg Universal indicator was added to solution "Z" . The solution turned greenish blue.
In the appropriate box on the table below the colour should be recorded and the explanation should state that a weak base is present.
If a precipitate forms after addition of one of the test solutions then the name of the precipitate should be given.

 
Solution Group 1 Group 2
  Na2SO4 KI Universal indicator Vinegar NaCl Na2CO3

A

 

 

 

B

 

 

 

C

 

 

 

D

 

 

 

E

 

 

 

F

 

 

 

G

 

 

 

42 X 1 mark = 42 marks
Flame test
A          
B          
C          
D          
E          
F          
G          
            7 marks
Solution Match          
Na2CO3          
K2CO3          
citric acid,          
Pb(NO3)2          
Ca(NO3)2          
AgNO3          
Fe(NO3)2          
            7 marks