chemistry- DrBob

posted by .

Last week i did a lab and i just wanted to show you my results because my computer was acting weird when i used the voltage probe.(I just needed you to check that the cathode and anodes and voltages make sense)

CuSO4(cathode)and Al2(SO4)3 (anode)--[0.050V]

cuSO4(anode) and ZnSO4(cathode)-- [0.048 V]

MgSO4(anode)and ZnSO4(cathode)--[0.284 V]

ZnSO4(anode) and AlSO4(cathode)-- [-0.056V]

Al2(SO4)3(cathode) and MgSO4(anode)--[0.966 V]

CuSO4(cathode)and ZnSO4(anode)--[-0.484]

  • chemistry- DrBob -

    I can't check any of the voltages; I assume these were at other than 1 M. For the Al/Cu (#1 below) the voltage would be about 2.0 volts for 1 M solutions of each. Also, it MIGHT be possible, for some that I have suggested as the other way around below, could be correct if the concentrations were not 1 M.

    CuSO4(cathode)and Al2(SO4)3 (anode)--[0.050V]
    OK.

    cuSO4(anode) and ZnSO4(cathode)-- [0.048 V]
    I think Zn is the anode and Cu is the cathode.

    MgSO4(anode)and ZnSO4(cathode)--[0.284 V]
    OK\

    ZnSO4(anode) and AlSO4(cathode)-- [-0.056V]
    I think Al is the anode and Zn is the cathode.

    Al2(SO4)3(cathode) and MgSO4(anode)--[0.966 V]
    OK

    CuSO4(cathode)and ZnSO4(anode)--[-0.484]
    OK

  • chemistry- DrBob -

    They are 0.1 M solutions. I have tons of post lab dicussion questions you think you can help me with them? I don't even know where to start

  • chemistry- DrBob -

    I suppose what you posted above are some of the tons of discussion questions. I think I answered one of them completely enough that you can follow that for the others.

  • chemistry- DrBob -

    Dear sir
    Good morning Sir we run a Company SENDHOOR CHEMICAS and we supply mag

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. For DrBob

    Hey DrBob, I posted an answer to you question on my lab report just to let you know what the y= and r^2 is
  2. Electrochemistry

    In lab, we did an experiment with electrochemical cells with solutions of ZnSO4, CuSO4, Al2(SO4)3 and MgSO4 and their respective metal electrodes. There are a couple of post-lab questions that I'm not sure about: (1) Summarize Part …
  3. physics

    in an electron microscope, a tungstun cathode with work function 4.5 eV is heated to release electrons that are then initially at rest just outside the cathode. The electrons are accelerated by a potential difference to create a beam …
  4. Biology

    I did a lab biology project on seed germination and the results weren't as expected. pH 5 worked better than pH 6 or 7 which seemed weird because surely it would be too acidic. I've been trying to find an explanation as to why I got …
  5. Biology

    I did a lab biology project on seed germination and the results weren't as expected. pH 5 worked better than pH 6 or 7 which seemed weird because surely it would be too acidic. I've been trying to find an explanation as to why I got …
  6. BiOlogy

    I did a lab biology project on seed germination and the results weren't as expected. pH 5 worked better than pH 6 or 7 which seemed weird because surely it would be too acidic. I've been trying to find an explanation as to why I got …
  7. Chemistry

    Hi, I was wondering if someone could clear this up for me. Anodes and cathodes. Which is which?
  8. chemistry

    When setting up an electroplating system, how do you set up the terminals of the voltage source to the anode and cathode?
  9. Biology - URGENT Enzyme Lab

    Did a catalase producing hydrogen peroxide lab, used manganese dioxide, fresh frozen liver, potato, ice, fine clean sand, etc. Basically just added hydrogen peroxide to the catalysts under diff conditions and stuff. Just don't get …
  10. language

    How do you diagram the sentence , The little girls adorn themselves with chains of dandelions.I hope this is alright if I cannot shew my work on the computer , but I shewed my work at home and just wanted to see if I got it correct. …

More Similar Questions