Science- Concentration and Dilution

  Hey everyone welcome back today in science we are learning about Concentration and dilution, we will be learning about some of the key words then we will be doing a experiment. I hope you enjoy My Blog have a wonderful day Good-Bye 

Definition:
Concentration means how much solute has been dissolved in the solvent in other words  how much solute there is in the solution.  We can measure this in two ways which is how dilute something is(How weak it it) or How concentrated it is (how Strong it is) 

Aim: carry out a serial dilution with potassium permanganate 

Experiment:

In today's Experiment we are be diluting things (Making it weaker) so that it has less concentration. Our experiment is called a serial dilution

What we used:

six test tubes 
Measuring cylinder 
tweezers 
Potassium Permanganate Crystal 
Plastic transfer pipette 
Test tube rack 

Hypothesis:

I think it will become a very light shade of purple because when it starts it starts out purple so it may just become a lighter shade of purple 

Method:
1. place the six test tubes in a test tube rack.

2. Fill 1 with 10mls of water full remaining with 5mls of water

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

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

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

6. Rinse the transfer pipette thoroughly to ensure that so 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 and repeat the transfer process for test tube 4,5, and 6 

Observation and discussion:

Once we did it it started off at a dark purple and at the end it became clear again. Test tube one was the most concentrated because it had more particals and number 6 test tube was more clear because it had less particals so it was more dilute.

here are photos of it