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Chem 4 > Representing The Formulae Of Organic Compounds > Flashcards

Representing The Formulae Of Organic Compounds Flashcards

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1
Q

What is the molecular formula?

A

This shows the number and types of atoms of each element present in a molecule.

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2
Q

What does the molecular formula not show?

A

How the atoms are joined together?

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3
Q

What can have the same molecular formula?

A

Different molecules.

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4
Q

What is the empirical formula?

A

The simplest whole number ratio of the atoms of each element in a compound.

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5
Q

What is the general formula?

A

This is the simplest algebraic formula for any member of a homologous series.

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6
Q

What is the general formula of alkanes?

A

CnH2n+2

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7
Q

What is the general formula of alkenes?

A

CnH2n

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8
Q

What is the general formula for alcohols?

A

CnH2n+1OH

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9
Q

What is the general formula for carboxylic acids?

A

CnH2nO2

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10
Q

What is the general formula for ketones?

A

CnH2nO

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11
Q

What does the displayed formula show?

A

The relative positioning of all the atoms in a molecule and the bonds between them.

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12
Q

What is the structural formula?

A

This uses the smallest amount of detail to show the arrangement of atoms in a molecule.

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13
Q

What is the skeletal formula?

A

This is a simplified organic formula.

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14
Q

What do you remove to show the skeletal formula?

A

All of the carbon and hydrogen labels from carbon chains.

Any bonds to hydrogen atoms.

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15
Q

What does the skeletal formula show?

A

A carbon skeleton with functional groups.

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16
Q

What does a line represent in a skeletal formula?

A

A single bond.

17
Q

What does an intersection of two lines represent?

A

A carbon atom.

18
Q

What does the end of a line represent?

A

A methyl group

Chem 4 (11 decks)

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