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SAT® Subject Test in Chemistry

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Hydrocarbon: Molecular Formula

SATCHM-EVEPT1

I. Experimental data show a compound contains $25\%$ carbon, $2\%$ hydrogen and $73\%$ chlorine and has a molar mass of $96.9 \ g/mol$. This compound has a molecular formula of $C_2H_2Cl_2$.

BECAUSE

II. A 100g sample of this compound would contain $25g$ of carbon ($~2$ mol), $2$ g of hydrogen ($~2$ mol), and $73g$ chlorine ($~2$ mol).

A

Statement I is true, Statement II is true

B

Statement I is true, Statement II is false

C

Statement I is false, Statement II is true

D

Statement I is false, Statement II is false

E

Statement I is true, Statement II is true and is a correct explanation of the phenomena described in I