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A compound has the empirical formula CH. A sample of this compound containing 0.387 moles has a mass of 30.19 g. What is the molecular formula? Select one: O a. C6H6 b. C2H2 0 c. C3H3 O d. C4H4
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A compound has the empirical formula CH. A sample of this

compound containing 0.387 moles has a mass of 30.19 g. What is the
molecular formula?
Select one:
O
a. C6H6
b. C2H2
0
c. C3H3
O
d. C4H4

User Cyva
by
7.1k points

1 Answer

2 votes
Answer: C6H6

Since we have the mass and number of Moles we can calculate the molecular weight.
n = m/M so M = m/n = 30.19/ 0.387 = 78 g/mol
For C6H6 the molecular weight is :
6 x 12 + 6 x 1= 72 + 6 = 78 g/mol
Which corresponds
User Mangala Edirisinghe
by
7.6k points
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