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Topic: mole calculation  (Read 5618 times)

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Offline FouRRaW

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mole calculation
« on: November 23, 2006, 01:30:58 PM »
125g of SO2 has how many moles of S?

do i just divide (mass/molar mass of S)
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Offline FouRRaW

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Re: mole calculation
« Reply #1 on: November 23, 2006, 01:35:31 PM »
k, well i figured out you do this.... mass of 125g/molar mass of S plus O2   but i don't really understand the concept and why this is the way?
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Offline Alberto_Kravina

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Re: mole calculation
« Reply #2 on: November 23, 2006, 01:39:49 PM »
The concept is easy: One mole of Sulfur dioxide contains exactly one mole of Sulfur.
So in this case: moles of SO2 = moles of S
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Offline FouRRaW

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Re: mole calculation
« Reply #3 on: November 23, 2006, 01:41:22 PM »
sweet, that is easy thanks
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