solution laboratory activity

1. LABORATORY ACTIVITY #1
Name:___________________________________ Yr/Sec.:_________________ Date:___________
SOLUTIONS
WHAT TO DO:
1. Pour 10mL waterintothe test tube.Add2 crystalsof saltand shake the contentsthoroughly.Recordyour
observation.
2. Using the same testtube, add crystalsof table salt,one at a time.Shake the testtube aftereachaddition.Continue
addinguntil crystalsnolongerdissolve.
3. Heat the test tube until the solutionalmostboils.Recordyourobservation.
4. Add crystalsof table saltin the same testtube until nomore crystalscan dissolve.Letthe particlessettleat the
bottomof the testtube.
5. Collectthe liquidusingadropperfromthe testtube leavingthe settledcrystals.
6. Transferthe contentof the dropperinanothertesttube.
7. Cool the liquidinthe testtube byimmersingthe testtube inabeakerhalf-filledwithice.
8. When the liquidinthe testtube hascooled,adda crystal of table salt.Recordyour observation.
WHAT YOUNEED:
QUESTIONS:
1. In whichcontainerof the stepsinthe procedure didyouobserve asaturated,unsaturatedandsupersaturated
solution?Explainyouranswer.
2. Was there a limittothe amountof table saltthatwas added?How can youtell?
3. What happenedafteraddingacrystal of table saltto the test tube immersedinthe ice bath(step8)?