EXPERIMENT: Solubility
OBJECTIVE: To investigate how temperature affects solubility.
HYPOTHESIS: The higher the temperature, the faster and more solute is dissolved.
MATERIALS: Copper sulfate, beaker, Bunsen burner set, glass rod, spatula, scale.
PROCEDURE: Weigh the amount of copper sulfate in the disk before hand. Set up Bunsen burner set. Put 50 ml of water in beaker. Slowly put copper sulfate in and stir with glass rod (Remember to only put more after dissolving it). Weigh how much copper sulfate you have dissolved. Now boil liquid with air hole open. When it is boiling, turn off the air hole and repeat the process of putting copper sulfate in. Weigh it again and see how much you have dissolved.
OBJECTIVE: To investigate how temperature affects solubility.
HYPOTHESIS: The higher the temperature, the faster and more solute is dissolved.
MATERIALS: Copper sulfate, beaker, Bunsen burner set, glass rod, spatula, scale.
PROCEDURE: Weigh the amount of copper sulfate in the disk before hand. Set up Bunsen burner set. Put 50 ml of water in beaker. Slowly put copper sulfate in and stir with glass rod (Remember to only put more after dissolving it). Weigh how much copper sulfate you have dissolved. Now boil liquid with air hole open. When it is boiling, turn off the air hole and repeat the process of putting copper sulfate in. Weigh it again and see how much you have dissolved.
Weight of copper sulfate before dissolving is 93.83 grams | Weight of copper sulfate after reaching a saturated solution (solvent at room temperature) is 87.23 grams Difference from before and after is 6.6 grams (93.83-87.23) | Weight of copper sulfate after reaching a saturated solution (solvent at boiling point) is 78.10 grams Difference before and after is 15.73 (93.83-78.10) |
CONCLUSION: The Copper Sulfate dissolved more in higher temperature because temperature affects the Copper Sulfate and speeds it up when dissolving. The experiment proved our process because we in higher temperature, the solvent was dissolved quicker. A saturated solution is the maximum amount of solvent that can be dissolved. To improve listening skills and ability to follow instructions, I will listen carefully and see how to do the experiment.
