1 / 4

Acidic redox

Acidic redox class questions 3-5

rafshinnekoo
Télécharger la présentation

Acidic redox

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. RA’s Balancing acidic redox Questions 3,4 and 5

  2. Q3)P + SO42- SO2+ PO43- 2 x (4H2O + P  PO43- + 8H+ + 5e-) 5x ( 2e- + 4H+ + SO42-  SO2 + 2H2O) 8H2O +2P  2PO43- + 16H+ + 10e- 10e-+ 20H+ +5SO42- 5SO2 + 10H2O 2P + 4H+ +5SO42- 2PO43- + 5SO2 + 2H2O

  3. Q4) I- + SO42- I2 + SO2 2I- I2 + 2e-½ oxidation reaction 2e- + 4H+ + SO42-  SO2 + 2H2O ½ reduction reaction 2I- + 4H+ + SO42-  I2 + SO2 + 2H2O complete redox reaction Which reactant is reducing agent?

  4. Q5) I- + SO42- I2+ SO32- 2I- I2 + 2e- 2e- + 2H+ + SO42-  SO32- + H2O 2I- + 2H+ + SO42-  I2 + SO32- + H2O What is oxidation number of sulfur in SO42- & SO32- ? What specie/element has been reduced? Witch reactant is oxidizing agent?

More Related