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11 January, 18:51

1) If 6.25 moles of CO2 are produced, how many moles of O2 were used?

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Answers (1)
  1. 11 January, 19:20
    0
    1 mol of methane is 16 grams. Therefore, if you have 100 grams of methane, it means that you have

    100

    16

    =

    6.25

    moles of methane.

    When you burn 6.25 moles of methane, you produce 6.25 moles of carbondioxide.

    Your reaction is wrong though. I want to correct it.

    C

    H

    4

    +

    2

    O

    2



    C

    O

    2

    +

    2

    H

    2

    O

    When you burn 6.25 moles of methane, you need 12.5 moles of oxygen gas.

    When you burn 6.25 moles of methane, you produce 6.25 moles of carbondioxide (275 grams of

    C

    O

    2

    ) and 12.5 moles of water vapour (225 grams of

    H

    2

    O

    ).
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