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21 September, 11:30

the compound diborane can be used as a rocket propellant. what is the percent composition of boron in diborane

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  1. 21 September, 11:48
    0
    78.14 % B; 21.86 % H

    Step-by-step explanation:

    The formula of diborane is B₂H₆.

    The masses of each element are:

    2B = 2 * 10.81 = 21.62 u

    6H = 6 * 1.008 = 6.048 u

    TOTAL = 27.67 u

    % B = 21.62/27.67 * 100

    = 78.14 %

    % H = 6.048 / 27.67

    = 21.86 %
  2. 21 September, 11:59
    0
    22% for plato and edmentum users
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