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21/09/2021 11:15 am
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An organic compound contains 78% (by wt.) carbon and remaining percentage of hydrogen. The right option for the empirical formula of this compound is [Atomic wt. of C is 12, H is 1]
(1) CH
(2) CH2
(3) CH3
(4) CH4
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21/09/2021 11:19 am
Answer: (3) CH3
Explanation:
Element % At. weight \(\frac{\%}{At.\; weight}\) simplest ratio
C 78 12 6.5 = 1
H 22 1 22 = 3
Empirical formula of this compound is CH3.
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