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  3. 1. the molar mass of a compound is 126 g/mol, and

1. The molar mass of a compound is 126 g/mol, and it's empirical formula is C2H2O....

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Chemistry

1. The molar mass of a compound is 126 g/mol, and it's empiricalformula is C2H2O. What is compound's molecular formula?

2. A compound consist of 26.18g Si and 29.82g O. Calculate itsempirical formula?

3. Calculate the empirical formula of the compound that consistof 70.4%F and 29.6%O.

Answer & Explanation Solved by verified expert
3.9 Ratings (634 Votes)
1Empirical formula of the compound C2H2OWe know the following atomic weightsC 120 gmolH 10 gmolO 160 gmolHence the mass of one empirical formula unit can be calculatedas followsNow it is given that the molar mass of the compound is 126gmolHence the number of empirical formula units    See Answer
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