Electrochemistry WORKSHEET vSum17 BLANK (7) (1)

Arizona State University School of Molecular Sciences 1 How Can the Identity of Metals Be Determined? This worksheet does not replace good lab notebook keeping! ALL INFORMATION RECORDED ON THIS WORKSHEET SHOULD COME FROM THE BOOK, PRELAB NOTES, THE LAB MANUAL AND PROCEDURES/VALUES/CALCULATIONS YOU HAVE RECORDED IN YOUR NOTEBOOK! 1. Part 1: In the table below, record the voltaic cell potential, E o cell , measurements for the combination of each metal with Metal 1. Include signs and units. Based on your observations, fill in whether M1 is the anode or the cathode for a (spontaneous) voltaic cell. ( Also record this data in your lab notebook .) Table 1: Building a Voltaic Cell Metal Paired With M1 E o cell with M1 as the Cathode (red lead) E o cell with M1 as the Anode (black lead) Is M1 the Anode or the Cathode? M1 0 V 0 V N/A M2 0.78 -0.78 Cathode M3 0.49 -0.49 Cathode M4 -0.39 0.39 Anode M6 1.51 -1.51 Cathode 2. Fill in Table 2 below to determine the identity of each of the unknown metals. Recall : E o cell = E o red (cathode) - E o red (anode) Table 2: Identification of Unknown Metals Metal Paired With M1 E o cell Experimental (From Table 1) E o red Experimental (Calculated from E o cell and E o red (Cu) ) Possible Identity (Use reference table to help) Actual Identity (Confirmed by TA) E o red from Reference Table M1 N/A N/A N/A 0.337 M2 0.78 -0.403 Zinc -0.763 M3 0.49 -0.153 Lead -0.126 M4 -0.39 0.727 Silver 0.799 M6 1.51 -1.173 Magnesium -2.37 Lab Section (or Day-Time) and Group Number ___W 4:00 – 5:50pm Group 5__ Due Date: _11/22/2023___ Names: Alyssa Bandin, Shabathya Williams, Daniel Rodriguez, Jeremy Hughes