Tuesday, 5 March 2019
Science
Yesterday we did a Experiment to science.
Aim:To make a dilution series to investigate concentration.
Equipment:a potassium permanganate crystal,six large test tubes,tweezers,a plastic tranfer pipette a test tube rank,10 ml measuring cylinder
Method:1. place the six test tubes in a test tubes rack.Label the rack with numbers 1- 6.
2. Using the measuring cylinder fill the test tubes 1 with 10 ml of water.Fill the remaining test tubes with 5 ml of water.
3.then use the tweezers add a single crystal of potassium permanent to test tube 1.
4. Gently shake the test tubes until th crystal has dissolved.
5.Using the transfer pipette,carefully remove exactly 5 ml from test tube 1 and pour in into test tubes 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 5 ml of solution from test tube 2 to test tube 3.
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment
To support my learning I ask you to comment as follows:
1. Something positive - something you like about what I have shared.
2. Thoughtful - A sentence to let us know you actually read/watched or listened to what I had to say
3. Something thoughtful - how have you connected with my learning? Give me some ideas for next time or ask me a question.
Note: only a member of this blog may post a comment.