What is meant by one mole of a substance? - Leaving Cert Chemistry - Question f - 2014
Question f
What is meant by one mole of a substance?
Worked Solution & Example Answer:What is meant by one mole of a substance? - Leaving Cert Chemistry - Question f - 2014
Definition of One Mole
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One mole of a substance is defined as the amount that contains as many particles as there are atoms in 0.012 kg (12 g) of carbon-12.
Avogadro's Number
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One mole also corresponds to the amount of substance that contains the Avogadro constant, which is approximately 6.022imes1023 particles.
Relation to Molar Mass
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Furthermore, one mole is equivalent to the relative formula (molecular) mass (M<sub>r</sub>) of the substance expressed in grams.
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