Question

A silicon chip used in an integrated circuit of a computer has a mass of 4.86 mg. How many silicon atoms are present in this chip?

Answer 1

Explanation:

(5.68 mg) × 1g/1000 mg) ×(1 mol si/28.09g)×(6.022×1023 atoms/1mol)=1.22×1020 si atoms

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