Question

Heat lamp or drying oven Hydrated copper chloride Distilled water Aluminum wire 30-ml beaker Glass rod Watch glass Buchner fiannel Hot plate Ethanol Füter paper CAUTION: Wear all safety equipment, follow all normal safety procedures and experiment as directed by your instructor follow instructions. Dispose of all liquid AND solid waste products from the 1. Weigh a clean, dry 30-mL beaker and record its mass to 3 decimal places. When-it-is-time,heat the beaker 2. Add approximately 1.00 gram of the hydrated copper chloride to the 30-mL beaker, and record the mass of the 30-ml beaker and the hydrated salt to 3 decimal places. 3. Observe the colog gef the hydrated salt, and use the glass rod to break up any large salt crystals turned a light brown color (not black), continue to heat gently for another 2 minutes. ?G 7-0 blut 4. Place the 30-ml. beaker containing the hydrated salt on the hot plate and gently heat it until the salt has 5. Observe the color of the anhydrous salt, then place the small watch glass on the beaker and leave it cool for Remove the watch glass and weigh the beaker and its contents, again recording to 3 decimal places. 26 S Obtain 20 cm of aluminum wire. Form the wire into a loose coil and completely immerse the coil in the 9. Using a glass rod, knock all the copper metal off the wire, and allow it to accumulate on the bottom of the n, brown 15 minutes. 6. Remove the watch gla 7. Add 15-ml of ditlled water. Observe the color of the solution. baby blue, ba solution. Wait until the solution turns colorless, adding more aluminum wire if necessary. beaker. A few drops of 6 M HCI can be added to help to remove the copper from the wire if necessary Remove the wire from the beaker. tandrecordíts mass to 3 decima!places, and use it ina Buchner fu as described by your instructor. a Buchner funnel set-up

Answer 1

1. Mass of 30 ml beaker is 26 grams

2. 27 grams

3. 1 gram

4. 26.8 grams

5. 0.8 grams

6. 0.2 grams

7. 0.2/18 i.e. 0.011 moles

8. 0.45 grams

9. 0.810 grams

10. 0.36 grams

11. 0.36/63.5 i.e. 0.0056 moles

12. 0.342 grams

13. 0.0096 moles