Purpose: To verify the formula for copper (II) sulfate pentahydrate by measuring the amount of water decomposed from the hydrated species.
MSDS: Copper sulfate pentahydrate- Harmful if swallowed. Causes skin irritation, causes serious eye irritation. Very toxic to aquatic life with long effects. If copper sulfate stays in the stomach, the victim becomes unconscious. The symptoms of poisoning include diarrhea, headache and injury to vital organs.
Background:
1.Describe the correct method of using weighing paper to retrieve the required amount of the solid crystalline chemical. Put weigning paper on the balance, zero the balance, and then put chemicals on the paper.
2. How do you “zero” the balance? You can zero the balance by hitting the “tare” button.
3. Why should you always check that the balance reads “0.00 g”? Otherwise the results won’t be accurate.
4. What is a hydrate compound? The compound that forms solid crytals with a fixed amount of water.
Procedure:
1) Follow normal lab safety rules, wear safety goggles, and aprons.
2) …show more content…
After this lab, I learned that the water in CuSO4* 5H2O can be removed by heating it with a propane burner. After the water was evaporated, you can use the loss in mass to calculate the amount of water initally in copper (II) sulfate pentahydrate. Once all water in copper (II) Sulfate pentahydrate are evaporated, the ionic compound is anhydrous,you can regenerate the anhydrous compound by adding water. Also, before the water in copper (II) sulfate was evaporated, it was in the color of sky blue, but the anyhydrous copper(II) sulfate is in the form of crystals that are Cyan-white. By adding the water, the regenerated compound turns to sky blue again, thus, copper(II) sulfate pentahydrate is sky blue because it contains water in