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Mg to atoms

PostPosted: Tue Jul 17, 2007 10:56 pm
by Brianna
Ok....If you have a spatula tip full of sulfur weighing 3.2 Mg., how many S atoms are present?

Re: Mg to atoms

PostPosted: Wed Jul 18, 2007 1:17 am
by Guest
Brianna wrote:Ok....If you have a spatula tip full of sulfur weighing 3.2 Mg., how many S atoms are present?


This looks suspiciously like a homework problem. so here are some hints, without actually doing the problem.

1) First, you have to determine how many moles you have. Look up the the atomic weight in the periodic table. This tells you how many grams in a mole. Convert the weight to moles.

2) Look up Avogadro's number. This is the number of atoms in a mole. Multiply the number of moles by it.

PostPosted: Wed Jul 18, 2007 1:27 am
by Guest
Thanks!

I NEED HELP

PostPosted: Wed Jan 21, 2009 6:59 am
by guest
please convert to grams
0.30 moles
0.60 moles
165.0 moles
1 moles
0.25 moles
0.031 moles
0.040 moles
3 moles

PostPosted: Sat Aug 30, 2014 5:17 am
by GUEST
The mass of a single aluminum atom is 4.48E-23 grams. How many aluminum atoms would there be in 280 milligrams of aluminum?