Materials:water, two screw-top jars, teaspoon, teat pipette, 100ml beaker, 250ml beaker, distilled water, liquid soup, epsom salt
Procedure-
1.In the 100ml Beaker mix a teaspoon of liquid soup with 100ml of the distilled water to make soup solution.
2.In the 250ml beaker dissolve 1 teaspoon of Epsom salts in 200ml of distilled water to make hard 'island' water.
3.Pour distilled water into one srew-top jar and the same amount of island water into the other.
4.Use the pipette to put one drop of soap solution into the jar of island water.
5. Screw the lid on tight and shake.
6. If the water doesn't foam, add another drop of solution, screw on the lid, and shake it again.
7. Repeat till water foams.
8. Count how many drops of soap solution you need.
9. repeat the experiment using the screwtop jar of distilled water.
10. Record the number of drops needed to make the water and soap foam. How many drop did u need to make each jar foam and could you please describe each jar thx ^^
2007-04-06
18:08:23
·
3 answers
·
asked by
Anonymous
in
Chemistry