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9 years ago
What is the mass of 3.09 × 1024 atoms of sulfur in grams?
A) 9.64 × 1022
B) 9.91 × 1025
C) 165
D) 0.160
E) none of the above

Textbook 
Introductory Chemistry Essentials

Introductory Chemistry Essentials


Edition: 5th
Author:
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wrote...
#1
Valued Member
9 years ago
If you mean 3.09 x 10^24 atoms of sulfur in grams, then I believe the answer is C) 165.
wrote...
#2
9 years ago
if you have 3.09 x 10^24 atoms of sulfur, you know that the Na(Avogadro's Number) is 6.022 x 10^23 mol^-1 so for every 6.022 x 10^23 atoms of something we get one mole of that thing, and that sulfur has a molar mass of  32.06 g/mol
what you will do is this:
(3.09 x 10^24 atoms) x ( 1/6.022 x 10^23 mol/1) x (32.06 g/mo ) = 164.505 grams(g) ~~ 165 g **notice the units will cancel out leaving you with just grams (g) **
So the answer is C xD
Lose yourself <3  *Image Removed*
wrote...
#3
4 years ago
thanks
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#4
3 years ago
Nice
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#5
3 years ago
ty
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