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A reaction Gibbs energy, ΔG, is sometimes not easy to determ…

A reaction Gibbs energy, ΔG, is sometimes not easy to determine experimentally. However, if the chemical reaction is a redox reaction that can be assembled into the form of a voltaic cell, then the Gibbs energy, ΔG, can be measured using just a volt meter! Consider the following redox reaction: 2 NO3− + 8 H+ + 3 Cu → 2 NO + 4 H2O + 3 Cu2+ It is a complicated reaction! You should be happy that you donate need to understand but in order to answer this question. Although it is complicated looking, it can be setup as a voltaic cell, where the voltage, Ecell, is measured to be +0.62 V on a voltmeter. What is the Gibbs energy of the redox reaction above as written, in kJ (to 1 decimal place)? You also need to know that there are 6 electrons involved in this reaction. Use the following to determine ΔG. ΔG = -n F Ecell F = 96,485 Coulombs/mol

Again, remember that your webcam must be pointed so that BOT…

Again, remember that your webcam must be pointed so that BOTH hands and your desktop can be clearly seen for the entire duration of the test. If your camera is built-in to your computer, you may tilt is back as necessary to see the screen, but anytime you are working on your paper, your desktop and hands should be visible to the camera.  This test is closed book. The use of any resources including devices, websites or notes, is a violation of academic integrity.  Failure to follow the rules of this test will result in a ZERO on the test. Formulas and Keyboard