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27 September, 05:48

If 3.95 g of N2H4 reacts and produces 0.750 L of N2, at 295 K and 1.00 atm, what is the percent yield of the reaction?

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  1. 27 September, 07:16
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    Molar mass of N2H4 = 32 grams/mole

    3.95 grams of N2H4 = 3.95/32

    = 0.123 moles

    This will produce 0.123 moles of N2

    Now,

    From the gas law equation.

    P. V = n x R x T

    P = 1 atm (given)

    V = 0.123 x 0.082057 x 295

    V = 2.97 Liters

    Theoretical yield = 2.97 Liters.

    Actual yield = 0.750 Liters

    percentage yield = (0.75/2.97) x 100 %

    = 25.25 %
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