Periods 6 & 7: 
Answer these Analysis Questions: 

1. Which contains a more dilute solution, Cup 1 or Cup 2?  Explain.

2. Was there copper in cups 1-6?  How did you know it was or was not there?  Explain, using evidence from this activity.

3. What is the concentration of  copper in the used copper chloride solution from Activity 23, "Producing Circuit Boards"?  Explain, using evidence from this activity.

4. How many liters of water would you need to dilute 1 liter of used copper chloride solution from 100,000 ppm to 1 ppm?

6. Is dilution an acceptable way to dispose of the used copper chloride solution? Explain.