Definitions

1. The molecular formula is then determined from both the empirical formula and the molecular mass of a substance.
2. Its molecular formula is variously represented as EtOH, CH 3 CH 2 OH, C 2 H 5 OH or as its empirical formula C 2 H 6 O (which it shares with dimethyl ether).
3. The molecular formula is the actual ratio of atoms to one another in a molecule.
4. Like the molecular formula, the structural formula of a substance gives the exact number of atoms of each element per molecule.
5. Its molecular formula is C20H24O2. The active ingredient is a white to slightly yellow crystalline powder with a molecular weight of 296.41. (Web site)

Terms Molecular Mass

1. Regardless, the terms molecular mass and molecular formula are often casually (but now incorrectly) applied to these ionic substances.

Draw Structural Formulas

1. It is necessary to draw structural formulas for organic compounds because in most cases a molecular formula does not uniquely represent a single compound. (Web site)

Information

1. Furthermore, the molecular formula provides information about some of the structural features that must be present in the isomers. (Web site)

Acetic

1. Acetic acid has the molecular formula C 2 H 4 O 2 (empirical formula CH 2 O).

Benzene

1. The ring and the three double bonds fit the molecular formula, but the structure doesn't explain the chemical behavior of benzene at all well. (Web site)

Alkane

1. Hexene, an alkene, and cyclohexane, an alkane, have the same molecular formula, C 6 H 12, and the same index of hydrogen deficiency, 1. (Web site)

Organic Compound

1. Benzyl acetate is an organic compound with the molecular formula C 9 H 10 O 2. It is the ester formed by condensation of benzyl alcohol and acetic acid. (Web site)

Molecular Weight

1. It is abbreviated as Ile or by its one letter abbreviation I. Its molecular formula is C 6H13NO2, and its molecular weight is 131.17 daltons.
2. If the formula used in calculating molar mass is the molecular formula, the formula weight computed is the molecular weight. (Web site)

Azo Compounds

1. Azo compound - In chemistry, azo compounds generally have a molecular formula of the form R-N=N-R', in which R and R' can be either aromatic or aliphatic.

Methane

1. Methane is a chemical compound with the molecular formula CH 4. It is the simplest alkane, and the principal component of natural gas. (Web site)

Four Hydrogen Atoms

1. The molecular formula fits the formula C n H 2n-2 and has therefore four hydrogen atoms less than the corresponding alkane.

Structural Isomers

1. Hydrocarbons with the same molecular formula but different structural formulae are called structural isomers. (Web site)

Molecular Mass

1. A separate measurement of the molecular mass is required to determine the molecular formula. (Web site)

Compounds

1. Compounds having the same molecular formula but different number of carbon atoms on either side of the functional group (O,S or NH) are caled metamers. (Web site)
2. Another way to say this is that two compounds with the same molecular formula, but different functional groups, are functional isomers. (Web site)

Butane

1. Butane and isobutane are structural isomers of each other, having the same molecular formula, but with the atoms connected in a different order. (Web site)
2. For example, the molecular formula of butane is C 4 H 10, and the molecular formula of ethanol is C 2 H 6 O. (Web site)

Molecule

1. Because CH 4 is also the molecular formula this specifies that in a molecule of methane, four hydrogen atoms are bonded to a single carbon atom. (Web site)
2. For example, the molecular formula for water, H 2 O, specifies that there are two hydrogen atoms and one oxygen atom present in each molecule of water. (Web site)
3. A molecular formula simply counts the numbers of each sort of atom present in the molecule, but tells you nothing about the way they are joined together. (Web site)

Atoms

1. For example, water has the molecular formula H 2 O, indicating that there are two atoms of hydrogen and one atom of oxygen in a molecule of water. (Web site)
2. The molecular formula specifies the actual number of atoms of each element in a molecule. (Web site)
3. The two butanes are structural isomers, molecules that have the same molecular formula but differ in the covalent arrangement of atoms.

Chemical Formula

1. A chemical formula or molecular formula is a way of expressing information about the atoms that constitute a particular chemical compound. (Web site)
2. A molecular formula (or chemical formula) shows how many different atoms in one molecule of a chemical compound and how they are connected together.

Structural Formula

1. Example: Benzene has the molecular formula C 6 H 6. Compare with the structural formula for benzene under Aromatic Compound. (Web site)

Isomers

1. In chemistry, isomers (Greek isos = "equal", méros = "part") are compounds with the same molecular formula but different structural formulae. (Web site)
2. These two molecules are said to be ISOMERS. Isomers are compounds which have the same molecular formula, but different structural formulae.
3. Isomers = Compounds with the same molecular formula but with different structures and hence different properties. (Web site)

Dimethyl Ether

1. Ethanol and dimethyl ether are examples of isomers, molecules with the same molecular formula but different structural formulae. (Web site)
2. For example, both ethanol (ethyl alcohol) and dimethyl ether have the molecular formula C 2 H 6 O (see isomer). (Web site)

Empirical Formula

1. The molecular mass of the compound is provided; use this value and the empirical formula to determine the molecular formula for the unknown compound. (Web site)
2. In order to determine a molecular formula of an unknown compound from its empirical formula, you must know the molecular weight of the compound.
3. More information is required to construct a molecular formula than is required to obtain the empirical formula of a substance.

Molecular Formula

1. Isomerization = A chemical change that involves a rearrangement of atoms and bonds within a molecule, without changing the molecular formula.
2. If a compound is molecular, the molecular formula is preferred to the empirical formula since it gives more information. (Web site)
3. The molecular weight may be calculated from the molecular formula of the substance; it is the sum of the atomic weights of the atoms making up the molecule. (Web site)

Categories

1. Encyclopedia of Keywords > Nature > Chemistry > Empirical Formula
2. Isomers
3. Nature > Matter > Mass > Molecular Mass
4. Chemical Formulas > Structural Formula
5. Molecular Weight
6. Books about "Molecular Formula" in Amazon.com
   

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