dddan
How many moles of cobalt (Co) atoms are there in
6.00x10^9 (6 billion) Co atoms?



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hereweg0
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okay lets take the given and multipy it by 1(for the amount of moles) and then divide that answer by 6.022x10^23

dddan
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alright i did that and got 1.02x10^8 is that correct?

hereweg0
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what type of chem class are you in?

hereweg0
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in other words does your class use 6.0 or 6.022?

dddan
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ya i have to use sig figs if thats what u mean..

hereweg0
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no do yu know your conversion factors?

dddan
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1 mole/ amu ...

hereweg0
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1mole= 6.0x10^23 atoms= the formula mass(grams)

dddan
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yea i know and since were going from number of particles to moles we divide by 6.0x10^23, right?

hereweg0
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dw:1348803312328:dw

dddan
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alright i screwed up i did that formula, yet i punched the numbers incorrectly into my calculator. thank you very much for your help.

hereweg0
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what was your answer?