Second, involves the equation that calculate the difference between standard reduction potentials:

  

Second, involves the equation that calculate the difference between standard reduction potentials:  E°cell = E°cathode + E°anode Figure 3: Formula Used for Calculation of Any Cell Potential Applying the Standard Electrode (Reduction) Potentials –see textbook Table 19.1 p 652. There are few of objectives of this lab: 1.To enhance your understanding of the construction and principles behind galvanic cell. 1.To gain deeper understanding of spontaneous red-ox reactions involved in the electrochemical process. 2.To get familiar with calculations of cell potential using standard electrode (reduction) potentials, second method. 3.Get familiar with writing the cell diagram. Before you start this laboratory assignment, you are encouraged to review Section 19.2-19.5 on pages 642-656 in the textbook. Throughout this laboratory assignment, you will be required to analyze an electrochemical reaction in terms of electrons exchange. Be sure to record all observations and any relevant notes that you think you will need to include in your laboratory report. Take a moment to formulate and write down a hypothesis describing what causes formation of the electric current in a galvanic cell? Pre-Lab questions: Answer the following questions in at least 5-10 sentences. 1.Using your own words, explain what does red-ox reaction mean? 2.Using your own words, explain what is a spontaneous reaction? 3.Using your own words, explain what is a cell potential? Procedure: Preparing the Lab 6 1.Using all available resources research “Magnesium-Iron Galvanic cells”, 2.Write half page long summary of your research. 3.If you haven’t already done so, formulate a hypothesis describing what causes formation of the electric current in a galvanic cell? Analyzing the Data 1.Using the research summary from “Preparing Lab 6” section Point 2, on the diagram below, name the following parts of magnesium-iron galvanic cell:            anode, cathode, salt bridge, direction of the electric current flow 2.In 3-5 sentences, describe what parts make a half-cell.