Chrysanthenone is an unsaturated ketone. If Chrysanthenone has M+ = 150 and contains 2 double bond(s) and 2 ring(s); what is its molecular f

Question

Chrysanthenone is an unsaturated ketone. If Chrysanthenone has M+ = 150 and contains 2 double bond(s) and 2 ring(s); what is its molecular formula? Enter the formula in the form CH first, then all other atoms in alphabetical order; do not use subscripts. The formula is case-sensitive.

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Ben Gia 4 years 2021-07-16T23:36:35+00:00 1 Answers 14 views 0

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  1. sori
    0
    2021-07-16T23:38:30+00:00
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    Answer:

    the Molecular formula will be; C10H14O

    Explanation:

    Given the data in the question;

    Chrysanthenone is an unsaturated ketone,

    it has M+ = 150 and contains 2 double bond(s) and 2 ring(s).

    molecular formula = ?

    we know that ketone contain 1 oxygen and mass of oxygen is 16

    so mass of the C and H remaining will be;

    ⇒ 150 – 16 = 134

    Now we determine the number of C atoms;

    ⇒ 134 / 13 = 10

    hydrocarbon with 10 hydrogen atom have CnH2n+2 means

    ⇒ ( 10 × 2 ) +2 = 22 hydrogens

    But then we have 3 unsaturation meaning 6 hydrogens less and also we have ring meaning 2 more hydrogens

    ⇒ 22 – 6 – 2 = 14

    Hence the Molecular formula will be; C10H14O

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Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )