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If one of the atoms is already at its smallest amount. i.e. CH4 would be the same for both, while C2H8 would also have an empirical formula of CH4 though.

H2O --> H2O etc.

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โˆ™ 2010-09-05 08:19:08
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Q: When are the empirical and molecular formulas the same?
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Which substance has the same molecular and empirical formulas?

CH4 has the same molecular and empirical formulas.


What is the molecular formula of a compound that has a molecular mass of 46 and an empirical formula of No2?

The molecular formula is the same as the empirical formula, NO2. The compound NO2 has a molar mass of 46g/mol, so the empirical and molecular formulas are the same.


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Both formulas are possible molecular formulas for the same empirical formula, CH2.


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Molecular formula is the integral multiple of Empirical formula.


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Example of Empirical formula is : CO2 Example of Molecular formula is : C4O8


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its more complex


Why do you use both empirical and molecular formula?

Molecular formulas are used the most often, but empirical formulas do help at times. Often it's just to simplify the molecular formula, but this simplification can often tell you if it's in the same chemical family as other compounds and such.


What is the empirical formula for methane?

The same as its molecular formula; CH4. See related question below for more details on how to find empirical formulas.


How are the empirical and molecular formulas for a compuond related?

An empirical formula is a brutto formula; a molecular formula explain the structure of a molecule.


Formaldehyde and acetic acid have the same empirical formula but different?

These two compounds has different molecular formulas.


How are the empirical and molecular formulas for a compound related?

A molecular formula is identical to the empirical formula, and is based on quantity of atoms of each type in the compound.The relationship between empirical and molecular formula is that the empirical formula is the simplest formula, and the molecular can be the same as the empirical, or some multiple of it. An example might be an empirical formula of C3H8. Its molecular formula may be C3H8 , C6H16, C9H24, etc. Looking at it the other way, if the molecular formula is C6H12O6, the empirical formula would be CH2O.


How are the empirical and molecular formulas for a compounds related?

A molecular formula is identical to the empirical formula, and is based on quantity of atoms of each type in the compound.The relationship between empirical and molecular formula is that the empirical formula is the simplest formula, and the molecular can be the same as the empirical, or some multiple of it. An example might be an empirical formula of C3H8. Its molecular formula may be C3H8 , C6H16, C9H24, etc. Looking at it the other way, if the molecular formula is C6H12O6, the empirical formula would be CH2O.

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