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Random Stuff > Chem - Formulae > Flashcards

Chem - Formulae Flashcards

1
Q

What is an empirical formula?

A

The simplest whole number ratio of atoms in a molecule

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2
Q

What are examples of an empirical formula?

2

A

CH.3 is the empirical formula of ethane

CH is the empirical formula of benzene

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3
Q

What is a molecular formula?

A

The molecular formula of a compound gives the number of each type of atom in a molecule

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4
Q

What is an example of a molecular formula?

1

A

C.2H.6 is the molecular formula of ethane

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5
Q

What is a structural formula?

A

A written one line formula showing which groups are connected to which

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6
Q

What are examples of a structural formula?

2

A

CH.3CH.3 is the structure formula for ethane

CH.2CH.2CH.2CH.3 is the structural formula for butane

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7
Q

What is a displayed formula?

A

A diagram which shows every bond in a molecule

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8
Q

What is a skeletal formula?

A

A simplified displayed formula

Hydrogen atoms not shown
Carbon atoms not at the corners of lines

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