Using Avogadro's Constant to Calculate The Number of Atoms - GCSE Chemistry | kayscience.com

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Avogadro’s constant is a huge number that is always 6.02x10x23. One mole is 6.02x10x23 and so one mole of a substance is the relative atomic mass or relative formula mass expressed in grams. One mole of a substance is always 6.02x10x23 of those atoms, molecules or ions. One mole of carbon has a mass of 12g.
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[@moi5679]

This video is really helpful, thanks alot :)!

[@KayScience]

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[@ameensabdandin7238]

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[@hello9477]

5:15 dont you have to times 1.8 x 10 to the power of 24 by 2 because oxygen is diatomic

[@akankshasingh159]

No, becuase its only asking for the number of oxygen molcules and not the total number of atoms/particles