Aim: Separate the solute from the solvent in stevia coke.
Hypothesis: That the coke will leave a strangely colored liquid and some crystals.
Equipment: Stevia coke, Conical flask, Heatproof mat, A delivery tube and bung, Bunsen burner, Tripod, Gauze mat, Retort stand, Boss head and clamp, Boiling tube.
Method:
- Set up equipment as shown in diagram.
- Add approximately 50 mL of coke to your conical flask.
- Light your bunsen burner. Open the air hole and gently push the bunsen burner under the tripod.
- Heat the solution until most of the solvent has evaporated. Turn off your Bunsen burner.
Results/Observations: The coke boiled very quickly and not a lot of crystals were left. The liquid was clear.
Conclusion: My hypothesis was completely wrong for the results were the opposite to my hypothesis.
Discussion: The liquid was clear and there weren't a lot of crystals because stevia coke is made up of mainly liquid ingredients.
Evaluation: My experiment was a success, I was able to separate the solute from the solvent in stevia coke (even if there wasn't much solute). If I did it again I would use a different type of coke.
Hi Thomas, great work! Why do you think the stevia coke didn't leave a solute behind? what ingredient is missing? What type of coke would you use to get a different result?
ReplyDeleteYou made good observations and have used scientific terminology well :)