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Tuesday, 5 March 2019

Concentration - Making a dilution series

Aim - Our aim was to a dilution series to investigate concentration

Method - 1. Place the 6 test tubes in the tube racks and label them from 1 to 6
2. using the measuring cylinder fill test tube 1 with 10 mL of water , fill the remaining test tubes with 5 mLs of water 3. using your tweezers add a single crystal of potassium permanganate to test tube one 4. gently shake the test tube till the crystal dissolves 5. using the transfer pipette carefully remove exactly 5 mLs from test tube 1 and pour it into test tube two 6. rinse the transfer pipette thoroughly to ensure that process transferring exactly 5 mls 7.gently shake test tube 2 and repeat  the transfer process transferring exactly 5 mls of solution from test tube 2 to test tube three 8.rinse the pipette again and repeat the transfer process for test tube 4,5, and 6

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



1 comment:

  1. Hi Aroha, I like how detailed your method was for this experiment. Someone could easily read this and know what to do themselves. Your next step is to include some results so that you can explain what happened. Great photo!

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