Question

a silicon chip used in current of microcomputer has a mass of 5.68 MG how many Silicon atom are present in the chief​

Answer 1

Answer:

1.2044×10²⁰

Explanation:

1 g is equal to 1000 mg.

Therefore, 5.68 mg is equal to 0.0056 g

Moles of Si= 0.0056/28

                  = 0.0002

Si atoms present= 0.0002×Avogadro's no.

                            = 0.0002×6.022×10²³

                            =0.0012044×10²³

                            = 1.2044×10²⁰