Question

A new computer chip contains 4.71×1022 Si atoms. Determine the mass (in grams) of the silicon present in the computer chip.

Answer 1

Answer:

2.24688907*10¹⁰

Explanation:

1mole of si is equal to 6.02*10²³ atoms

4.71*1022÷6.02*10²³

799604651.2 moles

the atomic mass of Si is 28.1 g/mol.

the mass of Si is 28.1g/mol*799604651.12=2.24688907*10¹⁰