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What mass of....contains...atoms of Cl
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Topic: What mass of....contains...atoms of Cl (Read 3919 times)
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alwaysanewb
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Posts: 15
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What mass of....contains...atoms of Cl
«
on:
August 30, 2009, 07:15:41 PM »
What mass of PbCl
2
contains 1.0 x 10
24
atoms of Cl?
Can someone help me get this one started?
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Fridushka
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Re: What mass of....contains...atoms of Cl
«
Reply #1 on:
August 30, 2009, 07:52:50 PM »
well for me it's sound somthing related to avogadro's number, but I'm never never sure of it, just think of it maybee it helps..
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alwaysanewb
Regular Member
Posts: 15
Mole Snacks: +0/-1
Re: What mass of....contains...atoms of Cl
«
Reply #2 on:
August 30, 2009, 08:38:50 PM »
yes that sound right. I'm just not sure how to set up the conversions.
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Fridushka
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Re: What mass of....contains...atoms of Cl
«
Reply #3 on:
August 30, 2009, 09:05:18 PM »
Well I found something in my old chemistry copybook..
So i think this is what you have to do..
divide 10
24
by Avogadro's number..you will get the number of moles, then easily you can find the mass!:)
I hope I'm right, and it helps!
Good Luck:)
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What mass of....contains...atoms of Cl