When you have a compound, why do the subscripts represent not only the number of atoms of an element in that compound, but also the number of moles?
For example, say you have Glucose, C6H12O6 <- that is one mole of the compound glucose right?
In that one mole of glucose, there are 6 moles of Carbon, 12 moles of Hydrogen, and 6 moles of Oxygen.
Why is that? Can you explain the concept behind that?
Thank you.
Chemistry Question?
2017-11-08 1:45 pm
回答 (1)
2017-11-08 5:33 pm
1 mole of molecules/atoms is defined as L molecules/atoms, where L = 6.02 × 10²³
1 molecule of glucose (C₆H₁₂O₆) contains 6 C atoms, 12 H atoms and 6 O atoms.
Multiply the numbers in the above sentence by L.
(L molecules) of glucose (C₆H₁₂O₆) contains 6L C atoms, 12L H atoms and 6L O atoms.
As L molecules/atoms is equal to 1 mole of molecules/atoms, the above sentence can be rewritten as :
1 mole of glucose molecules contains 6 moles of C atoms, 12 moles of H atoms and 6 moles of O atoms.
1 molecule of glucose (C₆H₁₂O₆) contains 6 C atoms, 12 H atoms and 6 O atoms.
Multiply the numbers in the above sentence by L.
(L molecules) of glucose (C₆H₁₂O₆) contains 6L C atoms, 12L H atoms and 6L O atoms.
As L molecules/atoms is equal to 1 mole of molecules/atoms, the above sentence can be rewritten as :
1 mole of glucose molecules contains 6 moles of C atoms, 12 moles of H atoms and 6 moles of O atoms.
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