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Chiomatn93 Group Title

Consider the following unbalanced reaction: C(s) + S8(s) → CS2(l) How many grams of carbon disulfide will be produced if 8.80 g of C and 17.2 g of S8 are allowed to react completely? Report your answer to 3 significant figures and do not include units.

  • 2 years ago
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  1. aaronq Group Title
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    do you know what units you use in stoichiometric problems?

    • 2 years ago
  2. Chiomatn93 Group Title
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    in this case g CS2

    • 2 years ago
  3. Chiomatn93 Group Title
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    MOLEES?

    • 2 years ago
  4. aaronq Group Title
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    nope you ALWAYS use moles

    • 2 years ago
  5. Chiomatn93 Group Title
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    OK

    • 2 years ago
  6. aaronq Group Title
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    so to solve this problem: (1) balance the reaction (2) convert grams of reactants to moles of reactants ...moles=mass/molar mass (3) determine limiting reactant (whichever one you have less of will determine how much product you can make) (4) use the coefficients from the balanced equation to find how many moles of product you make (5) convert to grams ...again using n=m/M

    • 2 years ago
  7. aaronq Group Title
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    do these and ill help you if you get stuck

    • 2 years ago
  8. Chiomatn93 Group Title
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    im stuck...im trying to convert the grams of the reactant to moles of reactant but im confused

    • 2 years ago
  9. aaronq Group Title
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    okay, so you know how many grams you have .. do you know each reactants molar mass?

    • 2 years ago
  10. Chiomatn93 Group Title
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    molar mass of C=12.011?

    • 2 years ago
  11. Chiomatn93 Group Title
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    Molar mass of CS2=76.141

    • 2 years ago
  12. aaronq Group Title
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    okay so use the formula n=m/M moles = mass / molar mass find the number of moles ie. divide the mass by the molar mass

    • 2 years ago
  13. aaronq Group Title
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    so for carbon m=(8.8g)/(12g/mol) = 0.733 mol

    • 2 years ago
  14. Chiomatn93 Group Title
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    OK

    • 2 years ago
  15. Preetha Group Title
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    Aaron, really good work helping this learner!

    • 2 years ago
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