Friday, March 18, 2011

(TG): CHEM LAB

 DILUTING AND CREATING SOLUTIONS LAB!

Today in class we had a lab where we had to create a solution of Copper Chloride with a concentration of O.1 M and then compare to samples\ Mr.Doktor set up. The solution that matched the solution you create (in terms of colour/shade) is the winner!

Materials:
  • Beaker
  • Graduated Cylinders
  • Stir Rod
  • Test Tube Stand

Procedure:

  1. Tke about 5g of Copper Chloride and place it into a plastic dish
  2. Take your plastic dish and pour the copper chloride onto a piece of wax paper
  3. Take the wax paper and place it on your weighing scale
  4. Weigh and record the total mass of the copper chloride
  5. Put 25 mL of water in a graduated cylinder
  6. Take 0.336g from the recorded amount of copper chloride with your scoopula
  7. Put 0,336g  of copper chloride into the 25mL of water
  8. Slowly stir the solution with a stir rod
  9. Compare with Mr.Doktors solution and choose the closest shade of blue that matches yours
  10. Repeat the procedure 3 times for consistent results

NECESSARY MATH:

0.025L x (.1mol/L\) x (134.5g/mol) = o.336g


Dont have any copper chloride? Well you could always....


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