We did this dilution experiment because or to explain or learn how dilution works, we were doing something or using a method called Serial Dilution...
It means we repeated this process for a while...
Aim: To make a dilution series to investigate concentration...
Equipment: A Potassium Permanganate crystal, Six large text tubes, Tweezers, A plastic transfer pipette, A test tube rack, 10ml measuring cylinder, Spatula...
Method:
1. Place the six test tubes in the test tube rack, Label the rack with numbers 1-6
2. Using the measuring cylinder, fill test tubes 1 with 10ml of water, fill the other test tubes with 5ml of water.
3. Using your 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 5ml 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 the transfer process, transferring exactly 5ml of the solution to test tube 2 to test tube 3.
8. Rinse the pipette again and repeat the transfer process for test tube 4, 5, & 6
Hi Niko, when I read your work I noticed that in your list of equipment, you were meant to say test tubes not text tubes.
ReplyDelete-Regards Riansha