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A level chemistry > DEFINITIONS > Flashcards

DEFINITIONS Flashcards

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1
Q

What is the relative isotopic mass?

A

The mass of one isotope compared to 1/12th of the mass of one atom of carbon 12

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2
Q

What is the relative atomic mass?

A

The weighted mean mass of one atom compared to 1/12th of the mass of one atom of carbon 12

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3
Q

What is the relative molecular mass?

A

The average mass of a molecule compared to 1/12th of the mass of one atom of carbon 12

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4
Q

Definition of the mole?

A

The amount of substance in grams that has the same number of particles as there are atoms in 12 grams of carbon-12

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5
Q

Definition of molar mass?

A

The mass in grams of 1 mole of a substance and is given the unit of g mol -1

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6
Q

What is the empirical formula?

A

The simplest ratio of atoms of each element in the compound

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7
Q

What is the molecular formula?

A

The actual number of atoms of each element in the compound

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A level chemistry (6 decks)

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