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DENIUS [597]
3 years ago
7

The empirical formula of a group of compounds is CHCl. Lindane, a powerful insecticide, is a member of this group. The molar mas

s of lindane is 290.8 g/mol. How many atoms of carbon does a molecule of lindane contain?
A) 2 B) 3 C) 4 D) 6 E) 8
Chemistry
1 answer:
Sergeeva-Olga [200]3 years ago
3 0

Answer:

<h2>D) 6</h2>

Explanation:

since,   n = molar mass / empirical formula mass

   Empirical formula mass = Total mass of atoms present in empirical formula

                       CHCl = 12+1+35.5

                                = 48.5

 Given, Molar mass = 290.8 g.

           So,        n = 290.8/48.5

                           = 5.995 , that is approx  6.

        So, Molecular formula = n × Empirical formula

                                           = 6 × CHCl

                                           = C_{6}H_{6}Cl_{6}

       So,   Number of C = 6

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