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rileysndr1782
15.01.2021 •
Chemistry
Be sure to answer all parts.
The density of a certain type of plastic is 0.76 g/cm². If a sheet of this plastic is 10.0 m long, 1.0 m wide,
and 1 cm thick, what is its mass?
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Ответ:
Both empirical and molecular are C₈H₈O₃.
Explanation:
Hello!
In this case, according the attached picture, it is possible to figure out the molecular formula of the mandelic acid by counting each carbon, hydrogen and oxygen in the molecule.
In such a way, we can see the presence of eight carbon atoms, eight hydrogen atoms and three carbon atoms; thus, the molecular formula is:
C₈H₈O₃
Furthermore, since the empirical formula is the smallest representation of the molecular formula when we are able to simplify it, we evidence no simplification is possible, consequently, the empirical formula equals the molecular one.
Best regards!