lab 10 postlab - Complete the following table The measured...

Info icon This preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Complete the following table. The measured potentials are your experimental data. Use the Reduction_Table to determine the calculated potentials. Use the Zn 2+ /Zn potential as the reference in each case. Please enter your potentials in volts. Hint: Use the Nernst Equation where necessary. The percent difference is defined as: [ (Calculated Potential - Measured Potential) / Calculated Potential ] x 100. Note that, defined in this way, percent differences can be positive or negative. Cell Measured Potential Calculated Potential % difference Ag-Zn 1.180 V 1.53 V 22.88 Pb-Zn .2926 V .63 V 53.56 Cu-Zn .7952 V 1.10 V 27.71 If you wanted to shift the potential of the lead-zinc cell upward, toward 0.70 V, which of the following actions would give the desired result? Check all that apply. Any action that makes log Q negative. Any action that makes [Zn 2+ ] smaller than [Pb 2+ ]. Adding some concentrated Zn(C 2 H 3 O 2 ) 2 solution to the Zn 2+ /Zn couple. Any action that makes Q < 1.0.
Image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern