Dilution Experiment

Magandang umaga, hapon or gabi bloggers! Welcome to my blog, on Monday what we did in science was very awesome because we did an experiment about dilution. 

                   

                        Dilution Experiment

Aim: To make a dilution series to investigate concentration.

Equipment: A potassium permanganate crystal, six large test tubes, tweezers, a plastic transfer pipette, a test tube rack, 10 ml measuring cylinder. 

Method: 

1. Place the six tubes in a test tube rack. Label the rack with number 1-6.
2. Using the measuring cylinder, fill test tube 1 with 10 ml. Fill the remaining test tubes with 5 ml of water.
3. Using your tweezers, add a single crystal of potassium permanganate to test tube 1.
4. Gently shake the test tube until crystal has dissolved.
5. Using the transfer pipette, carefully remove exactly 5 ml from 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 transfer process, transferring exactly 5 ml 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.

Discussion: This was a very great experiment. From test tube to test tube, the liquid became lighter and lighter because of the 5ml potassium permanganate crystal that we drop put inside using the pipette.