bjjgc
bjjgc
07-01-2016
Chemistry
contestada
How many grams do 3.6×10^20 atoms of silicon weigh?
Respuesta :
Billymkhoi
Billymkhoi
07-01-2016
3.6*10^20 atoms* (1 mol/ (6.02*10^23 atoms))= 6.0*10^(-4) mol.
6.0*10^(-4) mol* (28.1 g/ 1 mol)= 1.7*10^(-2) g.
Note that the units cancel out so you get the answer.
The final answer is
1.7*10^(-2) g Si
.
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