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March 30, 2017

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HOW MANY GRAMS OF CO2 WOULD BE FORMED FROM 20 GRAMS OF C6H6 IN THE FOLLOWING REACTION?
2 C6H6 + 15O2=12CO2 +6 H2O

  • CHEMISTRY - ,

    All of these types of stoichiometry problems are worked the same way.
    1. Write the balanced equation. You have done that.
    2. Convert what you have to moles. You have grams C6H6. moles = grams/molar mass.
    3. Using the coefficients in the balanced equation, convert moles of what you have (in this case C6H6) to moles of what you want (in this case CO2).
    4. Now convert moles CO2 to grams. grams = moles CO2 x molar mass CO2.
    Post your work if you get stuck.

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