Osmosis and Diffusion Lab

Diffusion and Osmosis Lab

Featuring colored solutes and yams

For homework the night before, my class read about the concepts of diffusion and osmosis.

 

Diffusion: Molecules spreading out from a higher concentration to a lower concentration

 

 

Osmosis: Specifically water molecules moving from a higher concentration to a lower concentration through a selective membrane

 Our board that we used to explain these concepts in class

Then we stated the lab.

Procedure:

1.)Take 7ml of each Solute and fill small plastic tube (make sure to tie the very ENDS)

2.) Mass each of the six different solutes

3.) put each "cell" into a cup with distilled water (25ml)

4.) Mass them again( Make sure to dry them off)

5.) find the percent of mass change

 

Part 3 of lab

 



Procedure:

1.) Cut up yam/ potato into 24 pieces

2.) Place four pieces onto the scale and then record their mass

3.) Then place those pieces into a cup

4.) fill the cups with the same six solutes that you used in the last part of the experiment

5.) Observe and take mass the next day

6.) find percent of mass change