Simplethings
Simplethings Simplethings
  • 23-02-2017
  • Chemistry
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Can you answer this please ?

Can you answer this please class=

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squirrelandmoose
squirrelandmoose squirrelandmoose
  • 23-02-2017
grams to moles to atoms

(41.6)g/(1 )×(1mol)/(87)g×(6.022×10^23)atoms/(1mol)

the 87 comes from the periodic table Sr has 87 as atomic weight
grams cancel then moles cancel and you are left with atoms

=2.87×10^23atoms

with all numbers it is 2.8794851×10^23atoms
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