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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