Can someone confirm my answer on this?
the question is, "How many moles of Pb are in 2.3456 g of Pb", i got for an answer 486.0 Mol, using Sig figs. Can anyone tell me if this is the right answer? If not, please tell me how would go about doing this.
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Well 1 mole of lead (Pb) would be 207g (as this is the atomic mass), the same as one mole of carbon os 12g and one mole of Sodium is 23g. Therefore, in 2.3456g of lead, there would have to be (2.3456/207 moles), so there would be 0.01133140097moles of Lead in 2.3456g of it. Hope this helps :)
Can't be.
Pb weighs 207.2g PER MOLE.
If you only have 2.35 grams, you don't even have 1/10 of a mole, much less 486 moles.
486 moles (207.2g/1mol) = 100699.2 grams.
The formula you're looking for is:
2.3456g (1mol/207.2g) = 2.3456/207.2 (g cancels, leaving moles), which is 0.011 moles
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