Serial Dilution

 aim: do a serial dilution 

hypothisis: 

1.plave the 6 test tubes in a text tube racl. label the rack with numbers 1-6

2.using the measuring cylinder, fill text tube 1 with 10 ml of water. fill the remaining test tubes with 5 ml of water

3. using tweezers, add a single crystal of potassium permanganate to test tube 1

4. gently shake the test tube until the crystal has dissolved

5. using the transfer pipette,carefully remove exactly 5 ml from the test tube 1 and pour it into test tube 2

6.  rinse the transfer pipette thoroughly to ensure that no purple solution remains.

7. gently shake test tube 2 and repeat the transfer process, transferring exactly 5ml of solution from test tube 2 to test tube 3

8. rinse the pipette again and repeat the transfer process for test tube 4, 5 and 6