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Create chemPad Questions for Electrochemical Cell Notation

When you create chemPad questions that are answered with electrochemical cell notation, your students must enter the notation in the manner prescribed by the answer key, so, for example, Zn( s ) | ZnSO4( aq ) || CuSO4( aq ) | Cu( s ) can not be substituted for Zn( s ) | Zn+2( aq ) || Cu+2( aq ) | Cu( s ). Your students can specify charges in various ways, for example, either Mg2+ or Mg+2.

How-ToInstructor HelpWebAssign

  1. Click Questions › Create.

    The Question Editor opens.

  2. In Mode, select Fill-in-the-Blank.

  3. Provide relevant information about assumptions or expectations for the question, for example, the conditions for the question — STP, SATP, or reaction/prevailing conditions — or whether states-of-matter should be specified in the response.

    Use the answer placeholder string <_> to specify where the answer box should be displayed.

  4. In Answer, type the following items on a single line:

    <EQN $PAD='chem'; $CHEM='vcell'; ''>answer_key 

    where answer_key specifies the correct answer to the problem.

    For example:

    Answer

    Code

    H+ | H2 | Pt

    <EQN $PAD='chem'; $CHEM='vcell'; ''>H^{+} | H_{2} | Pt

  5. Type a Solution.

    The solution helps your students understand the steps they need to take to determine the correct answer to the question. Your assignment settings specify when to show the solution.

Example chemPad Question (Electrochemical Cell Notation) The following table summarizes an actual question. QID 1534320 Name Template2 5.CHEMP.11. Mode Fill-in-the-Blank Question Write the standard line notation for the following cell. Assume all concentrations are 1.0 <i>M</i> and all partial pressures are 1.0 atm.<br > <h:chemical>Zn(s) + Ag^+(aq) &#8652; Zn^2+(aq) + Ag(s)</h:chemical><br> <_> Answer <EQN $PAD='chem'; $CHEM='vcell'; ''>Zn(s) | Zn^{2+}(aq) || Ag^{+}(aq) | Ag(s) Display to Students