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Please help me on my hw problem. i need to submit it by 11pm 04/19/09 (tomorrow)

  • Thread starter babyintel
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  • #1
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hi everyone, i have this hw problem that i'm trying to solve. please help me with this cux im not good at chem and i'm really stucked and i need to submit this problem online tomorrow ( 04/19/09 by 11pm .thanks a bunch for your help.


How many atoms are present in a 65.0cm^3 sample of plumber's solder, a lead–tin alloy containing 67% Pb by mass and having a density of 9.4 g/cm^3?
 

Answers and Replies

  • #2
CompuChip
Science Advisor
Homework Helper
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Welcome to PF.

I don't know in which time zone you are (it's now 10:20 am here) but that's not a lot of time you have left.

You could start by calculating how many grams of lead and how many grams of tin you have.
 

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