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12 January, 23:45

1. How many liters of chlorine gas, at standard temperature and pressure, will react with 15.5 grams of potassium metal? Show all of the work used to solve this problem 2 K + Cl2 yields 2 KCl 2. How many liters of methane gas (CH4) need to be combusted to produce 12.4 liters of water vapor, if all measurements are taken at the same temperature and pressure? Show all of the work used to solve this problem. CH4 (g) + 2 O2 (g) yields CO2 (g) + 2 H2O (g)

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  1. 13 January, 01:40
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    moles = volume/molar volume (Vm) n (H2O) = 12.4 / (Vm) n (CH4) = n (H2O) * 0.5 = 6.2/Vm V (CH4) = 6.4/Vm * Vm = 6.2L
  2. 13 January, 02:55
    0
    1. The balanced chemical reaction is:

    2K + Cl2 = 2KCl2

    15.5 g K (1 mol / 39.10 g K) (1 mol Cl2 / 2 mol K) (22.4 L Cl2 / 1 mol Cl2) = 4.44 L Cl2

    2. The balanced chemical reaction is:

    CH4 (g) + 2 O2 (g) yields CO2 (g) + 2 H2O (g)

    12.4 L H2O (1 mol H2O / 22.4L H2O) (1 mol CH4 / 2 mol H2O) (22.4 L CH4 / 1 mol CH4) = 6.2 L CH4
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