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24 September, 12:40

The formula for cocaine is C17H21N04. What is the percentage of carbon in the

compound?

(a) 4.62%

(b) 6.99%

21.1%

(d) 67.3%

+4
Answers (2)
  1. 24 September, 12:43
    0
    d

    Explanation:

    Approx. 70%

    Explanation:

    %Carbon

    =

    Mass of carbon

    Mass of molecule

    *

    100

    %

    =

    17

    *

    12.011



    g



    m

    o

    l

    -

    1

    303.39



    g



    m

    o

    l

    -

    1

    *

    100

    %

    =

    ?

    ?

    %
  2. 24 September, 13:02
    0
    The correct answer is d
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