Chemistry
Elements and Compounds

# How are molecular and empirical formulas related?

###### Wiki User

Molecular formula is the integral multiple of Empirical formula.

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## Related Questions

### 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.

### How is molecular formula C3H6 and molecular formula C6H12 related?

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

### Empirical and molecular formulas?

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

### 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 do you calculate Molecular formula from empirical formulaWhat could you do with that information to determine that the empirical and molecular formulas are related to one another by a factor of 6?

In order to find molecular formula from empirical formula, one needs to know the molar mass of the molecular formula. Then you simply divide the molar mass of the molecular formula by the molar mass of the empirical formula to find out how many empirical formulae are in the molecular formula. Then you multiply the subscripts in the empirical formula by that number.

### 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.

### What is the empirical formula for nitrogen dioxide?

The empirical formula for nitrogen dioxide is the same as its molecular formula - NO2. See related question below for more details on how to find empirical formulas.

### What are the empirical and molecular formulas for naphthalene?

The emprical formula is C5H4. The molecular formula is C10H8.

### 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.

### What is the contrast between molecular formulas and empirical formulas?

The similarity Is that you can find the components of the compound from both formulas

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

the empirical formula only gives the amount of each element as a ratiothe molecular formula gives the actual number of atoms of each element in a molecule of the compoundFor example these compounds all have the same empirical formula (CH2) but different molecular formulas: ethylene C2H4butene C4H8cyclohexane C6H12cyclooctane C8H16cyclodecane C10H20etc.

### What do empirical formulas tell you?

The empirical formula tells you the simplest formula for the compound. The molecular formula will be some multiple of the empirical formula, or it can be identical to the empirical formula.

### What is the difference between molecular formulas and empirical formulas?

"Molecular formulas show the total number of each atom in the molecule. Empirical formulas only show the ratio of the elements in the molecule. For example - acetate Molecular Formula Empirical Formula C6H12O6 CH2O " I just wanted to note that although this is correct the chemical formula in the example "C6H12O6" is not acetate. It is glucose. Acetate is a derivative of acetic acid.

### 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 difference between empirical and molecular formula?

Empirical formulas show the simplest whole number ratio of these atoms. Molecular formulas show the actual ratio of atoms in the compound. For example: Glucose is the a simple sugar whose molecular formula is C6H12O6 Its empirical formula would be CH2O which would be its molecular formula divided by the smallest whole number. Chemical Name Hydrogen peroxide Empirical Formula HO Molecular Formula H2O2 chemical name Benzene empirical formula CH molecular formula C6H6 remember that several compounds can have the same empirical formula

### Is S8 Empirical or Molecular?

Molecular. The empirical formula would simply be S.

### How are the emprical and molecular formulars for a compound related?

The empirical formula is the lowest whole integer representation of the molecular formula. For example, the empirical formula for C6H12O6 would be CH2O.

### What are the empirical and molecular formulas of 85.5 carbon and 14.5 hydrogen and a moleculer weight of 42gmol?

The molecular formula is C3H6 and the empirical formula is CH2. This compound is called propene or propylene, and it is a colorless gas.

### Explain why the percent composition of certain compounds are not sufficient to determine the compounds molecular formulas?

Because unlike the empirical formula, the molecular formula does not have to be the simplest ratio.If by chance you are given the percent composition of the elements in a substance, you could calculate the empirical formula and then the empirical formula's mass. However, the molecular formula equation is molecular formula= (empirical formula)n, where n is the mass of the molecular formula divided by the mass of the empirical formula. You would, therefore, need to know the mass belonging to the molecular formula, which you are not given.

### What are the three types of chemical formulas?

The three types of chemical formuals are: empirical, molecular, and structural.

### Can several compounds have the same empirical but have different molecular formulas?

Yes they can. For example CH2O is the empirical formula for both formaldehyde(CH2O) and glucose(C6H12O6)

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