HW 9 - Wright Jacqueline Homework 9 Due 11:00 pm Inst James...

Info icon This preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
Wright, Jacqueline – Homework 9 – Due: Nov 14 2007, 11:00 pm – Inst: James Holcombe 1 This print-out should have 27 questions. Multiple-choice questions may continue on the next column or page – find all choices before answering. The due time is Central time. 001 (part 1 of 1) 10 points Balance the redox reaction C + K 2 Cr 2 O 7 + H 2 SO 4 CO 2 + K 2 SO 4 + Cr 2 (SO 4 ) 3 + H 2 O . What is the coefficient of H 2 SO 4 in the balanced equation? 002 (part 1 of 1) 10 points Balance the redox reaction HNO 3 + H 3 PO 3 NO + H 3 PO 4 + H 2 O . What is the coefficient of H 3 PO 3 in the bal- anced equation? 003 (part 1 of 1) 10 points Zinc Silver 1 . 56 V V Voltmeter e - e - 1 M Zn 2+ (aq) 1 M Ag + (aq) Salt bridge to carry ions In this electrochemical cell, what is the cathode? 1. the solid silver electrode 2. the Ag + (aq) ions in the 1 M solution 3. the Zn 2+ (aq) ions in the 1 M solution 4. the solid zinc electrode 004 (part 1 of 3) 10 points Consider the mercury cell below. Zinc anode Steel cathode HgO, KOH and ZnO combined in an aqueous paste What is the electrolyte? 1. ZnO 2. HgO 3. KOH 4. steel 005 (part 2 of 3) 10 points What is the oxidizing agent? 1. Hg( ) 2. HgO(s) 3. Zn(s) 4. ZnO(s) 006 (part 3 of 3) 10 points What are the reactants for the reaction? 1. Zn, ZnO 2. Zn, KOH 3. HgO, KOH 4. HgO, Zn 5. Zn, Hg 6. HgO, ZnO 007 (part 1 of 1) 10 points For the reaction
Image of page 1

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

View Full Document Right Arrow Icon
Wright, Jacqueline – Homework 9 – Due: Nov 14 2007, 11:00 pm – Inst: James Holcombe 2 Cu(s) + Ag + (aq) Cu + (aq) + Ag(s) 1. Cu is oxidized at the anode and Ag is reduced at the cathode. 2. Cu is reduced at the cathode and Ag is oxidized at the anode. 3. Cu is oxidized at the cathode and Ag is reduced at the anode. 4. Cu is reduced at the anode and Ag is oxidized at the cathode.
Image of page 2
Image of page 3
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