EXPERIMENT: 26 ELECTROCHEMISTRY: GALVANIC AND ELECTROLYTIC CELLS Materials Required : 50 mL beake...
can someone help me write the half reactions for part A and B. 2. Electrolytic Cells A. In a small beaker, mix 1 mL of 0.1 M sodium iodide solution, 9 mL of water, 1 mL of fresh starch solution, and two drops of phenolphthalein indicator. Lead wires from a dry cell or storage battery into this solution and observe the region around each wire (9). Write half- reaction equations for the reactions (10). What would happen if the reaction...
Prelab Activity: Electrochemical Cells To determine the solubility product of copper(II) carbonate, CuCO3 , a concentration cell as described on pages 71-72 of the lab handout is constructed. The temperature of the Galvanic cell is measured to be 22.5°C, and the cell potential 282 mV (0.282 V). Using this data and Equation 8 in the lab manual, calculate the Ksp for CuCO3 and report your answer with three significant digits. For the Galvanic cell you will construct in PART B,...
need help with the calculatiobs the bottom picture is what i got performing the experiment C. Concentration Cells If both cell compartments contain copper metal and copper sulfate, the standard potential is 0.000 V and the Nernst equation becomes: Ercan = 0.000 volts (com dilute) volts Prepare a new cell, which has the beaker with 40 ml of 0.10 M CuSO. (from Part B) and 40 mL 0.0010 M Cuso. (from Part B) in an adjacent second one. Place copper...
1 Reaction C: Copper(II) Hydroxide to Copper(IT) Oxide Observations: The solntich goes from a light blue to a dark blue. when heated the solution turns to a green/black color. Balanced Molecular Equation: Balanced Net lonie Equation: Reaction D: Copper(IT) Oxide to Copper(II) Sulfate Observations: "The back sond is dissolved in the acid. This creates a light blue / Clear solurich Balanced Molecular Equation: Balanced Net Ionic Equation: Reaction E: Copper(II) Sulfate to Copper Metal (and Dissolution of excess Mg) Observations:...
Is #3 correct? "Sn(s)/Sn+2(aq) // Cu+2(aq)/Cu(s)" Also, I need help with #4 and #5. Thanks! (will rate!) Section A. Constructing a Small-Scale Electrochemical Cell Objective To construct a small-scale electrochemical cell using a redox system, to measure the cell potential and derive thermodynamic quantities. Procedures 1. Connect the red and black alligator clips to the multimeter to read voltage. Set up the multimeter to read DC (direct current) voltage using the tab at the top. 2. Cut the filter paper...
Chemical Reactions & Equations System 1: Reaction of Sodium Metal with Water Observations: solution start to produce vapor and eventually catches fire Reaction Type: Balanced Equation: (Na with H2O) Reaction in words: The hydrogen gas produced in the reaction can ignite in the presence of oxygen gas in the air. If you observed flames above, it was likely due to this reaction Reaction Type: Balanced Equation: (hydrogen gas with oxygen gas): System 2: Combustion Reactions of Methane (CH4) and Cellulose...
Procedure 1. Obtain a power supply and two cables that have alligator clips at one end. Also obtain two small pieces of insulated copper wire (approximately six inches, with a small amount of exposed wire at each end). 2. Completely Fill a 50 mL buret with 1 M sulfuric acid (to the top, not just the 0 mL mark). 3. Add 150 mL of 1 M sulfuric acid to a medium-sized beaker (250-400 mL). 4. Take a piece of insulated...
Page 1 and 2 are instructions. Please help me solve K for page 3 and page 4 and please check the other work on Page 3. Thanyou very much. Will Rate! CHM 112 Electrochemical Cells and Thermodynamics Section A. Constructing a Small-Scale Electrochemical Cell Woodbridge Campus Objective To construct a small-scale electrochemical cell using a redox system, to measure the cell potential and derive thermodynamic quantities. Procedures 1. Connect the red and black alligator clips to the multimeter to read...
Chemistry Laboratory Manual 2017 Revision 3) Get a medium test tube and place about 2 ml of hydrochloric acid into it. Now add a piece of magnesium metal and notice what happens over time Evidence of a shemical reaction white bubbles Balanced chemical equation: Balanced lonie equation: Balanced net ionic equation: 4) Demonstration: Your instructor will demonstrate the reaction that takes place between lithium metal and water. The demonstration will include a test of the resulting solution with universal indicator...
Experiment 9 Part C-Electrolysis of Salt Solutions 10. Obtain and thoroughly rinse a U-shaped glass tube (U-tube) and fill it to within an inch or so of the rim with the 2% NaCl solution. 11. Add one drop of phenolphthalein to each arm of the U-tube. Clamp the U-tube to a ring stand (Figure 9-2). 12. Obtain two graphite electrodes and rinse the electrodes thoroughly. Obtain two connector wires with alligator clamps on both ends. With one of the clamps...