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AP Chemistry/Unit 1: Atomic Structure and Properties
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Molecular Formula From Percent Composition
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The mass percent composition of a compound with a molar mass of $$170.14\,g/mol$$ is shown in the table. What is the molecular formula of the compound?

Element Mass Percent (%)
C 56.5
H 7.11
P 36.4
A

$$C_4H_6P$$

B

$$C_8H_{10}P_2$$

C

$$C_8H_{12}P_2$$

D

$$C_6H_9P_2$$

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