Dolly_231
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Report Thread starter 11 months ago
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Students should understand that the measurement of amounts in moles can apply to atoms, molecules, ions, electrons, formulae and equations, for example that in one mole of carbon (C) the number of atoms is the same as the number of molecules in one mole of carbon dioxide (CO2).
Specification 4.3.2.1

Please can somebody explain what this means please I would really appreciate it
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Aloe Striata
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This pertains to the Avogadro's constant. In one mole of a substance, there will be 6.02*10^23 particles. If you have Helium for example, which exists in a monoatomic state, 4 grams of Helium will have 6.02*10^23 Helium atoms. 70 grams of chlorine will have 6.02*10^23 molecules as chlorine is diatomic. You do know that a substance has a molar mass equal to it's mass number in grams, right?
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