ApchemWiki | Lab Test Electrochemistry And Chemical Formula | RecentChanges | Preferences
1. Using an outline format, explain the apparatus and step to determine the value of the hydrate ("x" of H2O in the chemical formula).
2. In an electroplating process for copper, 0.45A of current over 60minutes plated out a given amount of copper (from a Cu2+). You are given the actual amount of copper plated out. Explain, in outline form, the calculations you need to perform:
a. Determine the theoretical amount of copper plated out.
b. Percent error (or if you want percent yield, even though it is not technical correct definition)
3. In outline, determine an experiment that will determine the half cell potential of a metal. Please include a picture of the electrochemical cell.
4. In the chemical formula lab, if you massed out the initial mass of aluminum (assume AL is limiting reactant) wrong and there was more than you wrote down, how would that change the chemical formula? Explain