1 / 6

Warm-up April 19 th , 2010

Warm-up April 19 th , 2010. Which diagram represents a situation where a reaction should take place? Why?. Cr. Cu. Cu 2+. Cr 3+. A Redox Reaction 2 Cr + 3 Cu 2+  2 Cr 3+ + 3 Cu. Cr. Two “half-reactions” 2 Cr  2 Cr 3+ + 6 e - (oxidation)

howe
Download Presentation

Warm-up April 19 th , 2010

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Warm-upApril 19th, 2010 • Which diagram represents a situation where a reaction should take place? Why? Cr Cu Cu2+ Cr3+

  2. A Redox Reaction2 Cr + 3 Cu2+ 2 Cr3+ + 3 Cu Cr Two “half-reactions” 2 Cr  2 Cr3+ + 6 e- (oxidation) 3 Cu 2+ + 6 e-  3 Cu (reduction) Which one is oxidation and which one is reduction? Cu2+ e-

  3. e- e- e- Anode Cathode 1.55 V Cr Cu Cr3+ Cu2+ Salt Bridge Which way are the electrons flowing? Anode – the electrode where the electrons are flowing in Cathode – the electrode where the electrons are flowing out

  4. e- e- e- Anode Cathode 1.55 V Cr Cu Cr3+ Cu2+ Salt Bridge

  5. e- e- e- Anode Cathode Voltage 1.55 V • Voltage: A measure of the electrical potential difference between two points • Current: Amount of charge transferred per unit time Cr Cu Cr3+ Cu2+ Salt Bridge

  6. Your Task • Build a cell that will produce the greatest current possible given the materials. • Build at least three batteries • What you will hand in: • A diagram • How much current you were able to produce

More Related