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electrochemistry

  1. DAT Destroyer

    DAT Faraday's Law DAT Organic Chemistry Practice Question | DAT Destroyer | OAT Destroyer | Dr. Jim Romano

    Can you solve this DAT Organic Chemistry practice question involving Faraday's Law and electrochemistry? The solution is included on Slide 2. Free DAT & OAT Resources: Start Your DAT and OAT Preparation for Free | Official Resources from Dr. Jim Romano Join our free Facebook Study...
  2. DAT Destroyer

    DAT DAT General Chemistry Challenge: Galvanic Cells & Electrode Reactions | DAT Destroyer | OAT Destroyer | Dr. Jim Romano

    A positive cell potential indicates a spontaneous galvanic cell reaction. Consider the following cell: Pb / Pb(NO₃)₂ (1.0 M) || AgNO₃ (1.0 M) / Ag As this cell operates, which reaction occurs at the negative electrode? ✅ Correct Answer: B Pb → Pb²⁺ + 2e⁻ Key concepts tested: •...
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    • anode cathode dat dat destroyer dental admission test dr. jim romano electrochemistry galvanic cells general chemistry math destroyer oat oat destroyer organic chemistry oxidation reduction voltaic cells
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    • Forum: DAT and OAT Destroyer by Orgoman
  3. DAT Destroyer

    DAT DAT General Chemistry Challenge: Voltaic Cells & Salt Bridges | DAT Destroyer | OAT Destroyer | Dr. Jim Romano

    Can you solve this DAT General Chemistry challenge? Take a moment to work through the problem before swiping to Slide 2 for the answer and explanation. Electrochemistry is a high-yield topic for the DAT and OAT. This challenge reviews the role of the salt bridge in a voltaic (galvanic)...
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    • dat dat destroyer dental admission test dr jim romano electrochemistry galvanic cell general chemistry oat destroyer optometry admission test salt bridge voltaic cell
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    • Forum: DAT and OAT Destroyer by Orgoman
  4. DAT Destroyer

    DAT HIGH YIELD DAT General Chemistry Question | DAT Destroyer | OAT Destroyer | Dr. Jim Romano

    Understanding the Nernst equation is critical for DAT General Chemistry and electrochemistry problems. As product concentration increases, the reaction quotient Q increases, causing cell potential to decrease. Students often memorize equations without understanding how concentration changes...
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    • dat dat destroyer dat general chemistry dat study materials dr. jim romano electrochemistry general chemistry nernst equation oat destroyer oat prep predental
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    • Forum: DAT and OAT Destroyer by Orgoman
  5. DAT Destroyer

    DAT DAT Electrochemistry Question – (General Chemistry) | DAT Destroyer | OAT Destroyer | Dr. Romano

  6. T

    E° cell equation for MCAT/OAT/DAT

    i was wondering when figuring out the value of E° cell which equation do i use? 1. cathode - anode or 2. cathode + anode the OAT Kaplan book is gave the second equation but the Kaplan MCAT book is giving me the first equation
  7. R

    *Spoiler - AAMC FL1 C/P #53

    A student can most effectively increase the current passing through the circuit in Figure 2 by doing which of the following? I got the answer correct because I understand if you decrease R you would increase I However, on one of the answer choices How does decreasing the conc. of X^n+ &...
  8. M

    Anion/cation movement vs. electron/proton movement

    I'm confused about two statements made in the Kaplan books: "Anions always move towards the anode, and cations always move toward the cathode." "Electrons always flow through the wire from the anode to the cathode and current (protons) flows from cathode to anode." But isn't an electron an...
  9. K

    Oat topic changes?

    On the 2017 OAT topics list, I don't see magnetism under Physics. Is it safe to say that I won't be seeing this topic on the test?
  10. B

    Kaplan Standard Reduction Potential

    According to the following standard reduction potentials So I always get confused as to why they switched the sign for the standard reduction potential for Zn from -0.76 to +0.76. The way I look at it, from the reaction given, Zn is oxidized and Ag is reduced. As for the standard reduction...
  11. F

    Implications behind +/- sign of anode in electrochemistry

    In a spontaneous (Galvanic, concentration) cell, the sign of the anode is (+), as anions are attracted to it in order to balance out the newly oxidized charges. Opposite occurs in the cathode. In a non-spontaneous (Electrochemical) cell, the sign of the anode is (-)... however, since oxidation...