Moles Flashcards

1
Q

What is a mole?

A

Fundamental concept that is used to measure the amount of substance.

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2
Q

What is the abbreviation for a mole?

A

Mol.

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3
Q

What is Avogadro’s constant?

A

A mole of any substance always contains the same number of atoms, molecules or ions. This is a huge number and its value is called the Avogadro constant.

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4
Q

What is the value of Avogadro’s constant?

A

6.02 x 10^23 atoms per mole.

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5
Q

What is the calculation to work out the number of moles?

A

mass (g) / Ar OR mass (g) / Mr

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6
Q

What is the calculation to work out the mass?

A

number of moles x Ar OR x Mr

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