Skip to content

Help Zone

Student Question

Secondary IV • 3mo.

I’m completely stuck on this mole and stoichiometry worksheet my teacher gave me. I have no idea what to do.

IMG_0478.jpeg
IMG_0479.jpeg


Science
avatar
avatar

{t c="richEditor.description.title"} {t c="richEditor.description.paragraphMenu"} {t c="richEditor.description.inlineMenu"} {t c="richEditor.description.embed"}

Explanations (2)

  • Explanation from Alloprof

    Explanation from Alloprof

    This Explanation was submitted by a member of the Alloprof team.

    Options
    Team Alloprof • 3mo.

    Hi !

    Since all the reactions seems to be complete, you can use the sample stoichiometry calculation.


    image.png


    First, you have to make sure that the reactions are balanced. wich means that the proportion of atoms are the same on each side of the reaction. You will also need at times to write them first.



    For example, in #1, they give a reaction and an amount of iron (Fe). Considering that the oxygen is on a saturated quantity. You can then transform the amount in mole (with the molar mass/molecular weight) and do the calculations.

    I'll let you first try by yourself and you have any other questions, feel free to ask them.

    Have a nice day !

  • Options
    3mo.

    Hi,

    There is an explaination on AlloProf on how to resolve these with Stoichiometry.


    https://www.alloprof.qc.ca/en/students/vl/sciences/stoichiometry-s1073

Ask a question