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Chiomatn93

  • 2 years ago

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.

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

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

  3. Chiomatn93
    • 2 years ago
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    MOLEES?

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

  5. Chiomatn93
    • 2 years ago
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    OK

  6. aaronq
    • 2 years ago
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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

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

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

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

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

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

  12. aaronq
    • 2 years ago
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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

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

  14. Chiomatn93
    • 2 years ago
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    OK

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

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