Question

How many moles are equal to 9.27 x 1022 atoms of Silicon?

a) 1.54mol
b) 2.25mol
c) 0.61mol
d) 3.76mol

Answer 1

9.27 x 10^22 atoms of Silicon are equal to 0.154 mol when divided by Avogadro's number (6.022 x 10^23 atoms/mol).

Step-by-step explanation:

To find how many moles 9.27 x 1022 atoms of Silicon are equivalent to, you need to use Avogadro's number, which is 6.022 x 1023 atoms per mole. By dividing the number of atoms by Avogadro's number, you obtain the number of moles.

Here is the calculation:

Moles of Silicon = (9.27 x 1022 atoms) ÷ (6.022 x 1023 atoms/mol)

Moles of Silicon = 0.154 mol

Therefore, the correct answer is:

• (a) 1.54 mol