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What is the molecular formula of the compound whose molar mass is 120.0 g/ mol and empirical formula is SiO2
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What is the molecular formula of the compound whose molar mass is 120.0 g/

mol and empirical formula is SiO2

User Joseph Shih
by
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1 Answer

7 votes
M=120.0 g/mol

M(SiO₂)=A(Si) + 2A(O)
M(SiO₂)=28+2*16=60 g/mol

N=M/M(SiO₂)
N=120.0/60=2

(SiO₂)₂ or Si₂O₄


User Taylor Rose
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7.8k points
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