<p> Week 13</p><p>Lab 1 W12_L1_galvanic See Table 1 Galvanic cells cells Highest potential cell Intersection Projector, computer IS13 Review Nernst, SHE, table Ed’s demos: oxidation states of V reduction, concept map echem or Mn, electrolysis of water, potato clock, Zn/Cu electrochemical cell? Section Poster session</p><p>Lab 2 One computer per group for report W13_L2_vitamin C Vitamin C writing Report Assignments:</p><p>Table 1: W12_L1_Galvanic Cells Chemical Supplies from Nonchemical Supplies from Supplies for us to Stockroom Stockroom provide</p><p>ZnSO4 1.0 M 10 24 well microplates PASCO voltmeters (8) mL</p><p>Cu(II)SO4 1.0 M 10 5.5 cm diam. filter paper PASCO temperature mL probes (8) Copper (II) 0.1 M 1 L Steel wool nitrate Copper (II) 2 M 250 Wires or strips of: copper nitrate mL Copper (II) 0.01 250 Wire strips of zinc nitrate M mL Zinc nitrate 0.1 M 250 Wire strips of iron mL Silver nitrate 2 M 250 Wire strips of silver mL Silver nitrate 0.01 250 Wire strips of magnesium M mL Silver nitrate 0.1 M 1 L Iron (III) nitrate 0.1 M 250 mL Magnesium 0.1 M 250 nitrate mL Potassium 0.1 M 500 nitrate mL *Quantity is the amount need for each section of the studio class assuming 24 students in each studio session.</p><p>It is preferable to have the chemicals in bottles with droppers attached.</p><p>Lab Description: Students will be making small-scale galvanic cells in the microplates using KNO3 soaked filter paper strips as the salt bridge. Students will scale up one galvanic cell in the 50mL beakers to look at the effects of temperature on the EMF of the cell.</p><p>Lab 2 Source of studio: Sowa, S., & A.E. Kondo. (2003). “Sailing on the ‘C’: A Vitamin Titration with a Twist.” Journal of Chemical Education, 80(5), 550-551.</p><p>Students determine amount of Vitamin C in various fruits in order to determine the fruit that best supplies Vit C per volume. Chemicals Supplies Needed Supplies we have 2% starch solution 300 mL Tape measures Lemons, limes, oranges, grape fruit (2- 4 each Vitamin C tablets (100-500 mg) 25 Knife for cutting fruit Iodine solution 1 L Juicer if available 1% I2 /2% KI; 10 g I2 + 20 g KI per liter (1000 mL). Please label as ~1% acetic acid 0.2 M 600 mL Listed per section</p>