Copper Odyssey Conversion IV

Copper Odyssey Conversion IV

Conversion IV - Changing copper (II) oxide to copper (II) chloride.

Pre-lab Questions: (page four of your lab report)

1. Balance the following reaction.

____ CuO(s) + ____ HCl (aq) à ____ CuCl2(aq) + ____ H2O(l)

2. In Table format:

a. Correctly name all of the above compounds.

b. List at least ten physical and/or chemical properties for each of the above compounds.

c. Draw the structural formulas for each of the above compounds.

Analysis Questions: (Day 3 Homework, page ten of your lab report)

1. What type of chemical reaction is Conversion IV?

2. What were we trying to wash away from the black copper (II) oxide before beginning Conversion IV?

3. Identify the Conversion IV compounds as ionic or molecular.

4. Identify the Conversion IV bonds as ionic, nonpolar covalent, or polar covalent.

5. What determines if a molecular compound is polar or nonpolar?

6. How can you tell that Conversion IV is underway?

7. How can one tell when Conversion IV is completed?

8. List all of the substances in the bottle at the end of Conversion IV.

9. Is HCl acidic or basic? How do you know?

10. What is an Arrhenius acid?

11. What is a Bronsted-Lowery acid?

12. What is the molar concentration of the most concentrated form of HCl?

13. In which phase is pure HCl?

14. Determine the volume of concentrated HCl and the volume of water needed to produce 20mL of 6M HCl.

15. Determine the number of moles of HCl in 20mL of 6M HCl.

16. Determine the number of moles of the concentrated HCl that was used to make 20mL of 6M HCl.

17. Compare the number of moles in problem fifteen and sixteen. Are they the same or different? Explain.

18. What is a dilution?

19. Suppose some 6M HCl was spilled on the counter. You wipe it up with paper towel. What should you do with the paper towel? (Think of the safety of the custodian.)

20. What is the difference between molarity and molality?

21. What is the [H+] in 5.0L of 1M H3PO4?

22. What is the [H+] in 5.0L of 2M H3PO4?

23. What is the [H+] in 5.0L of 0.5M HCl?

24. What is the pH of the HCl sample in problem twenty-three?

25. Name the following formulas.

Ca(OH)2 H3PO4 HC2H3O2 CH4 KCl NH4OH HF LiOH FeSO4

26. Which of the compounds in problem twenty-five are acids? Bases? Neither?

27. Complete the table.

Symbol / Name / Metal or Nonmetal / Group Name and/or Number / Symbol of another element which could be expected to react similarly.
Mg
K
Br
Ar
Cu
Sn
Eu
U