Chemistry questions. Please help! Please help with any that you know the answers of. Thanks so much!?

11. Write a chemical equation for the reaction in which nitrogen triiodide makes nitrogen gas and solid iodine (I2). Is this reaction balanced? Justify your answer.

12. What type of reaction did you write in the previous answer?

13. Write a chemical equation for the combustion of ethyl alcohol (C2H6O). Is this reaction balanced? Justify your answer.

14. Write a chemical equation for the combustion of sugar (C12H22O11). Is this reaction balanced? Justify your answer.

15. Write a chemical equation for the combustion of ibuprofen (C13H18O2). Is this reaction balanced? Justify your answer.

16. Write a chemical equation for the combustion of buckminsterfullerene (C60). Is this reaction balanced? Justify your answer.

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  • Anonymous
    8 years ago
    Best Answer

    11.) 2NI3 -----> N2 + 3I2

    12.) ???

    13.) C2H60 + 3O2 ----> 2CO2 + 3H20

    14.) C12H22O11 + 12O2 ------> 12CO2 + 11H20

    15.) C13H18O2 + 16.5 O2 ------> 13CO2 + 9H20

    16.) C60 + 60.5 O2 ----> 60CO2 + H20

  • 4 years ago

    From the gas law, P*V = n*R*T. n, the no of moles of the gas is M/mm, where M is the mass and mm the molecular mass (=30 for C2H6). Then P*V = (M/mm)*R*T The density is D = M/V: D = M/V = P*mm/(R*T) use R = 62.36 L*torr/(ºK*mole), P = 861 torr, T = 367ºK, to get D in gm/L. Then divide by 1000 to get gm/cm^3

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