Question

How many moles is 5.38 x 10^21 atoms of sodium

Answer 1

The answer is

0.0089 moles

Step-by-step explanation:

To find the number of moles in a substance given it's number of entities we use the formula

`n = (N)/(L) \\`

From the question

N = 5.38 × 10²¹ atoms of sodium

We have

`n = \frac{5.38 * {10}^(21) }{6.02 * {10}^(23) } \\ = 0.00893687...`

We have the final answer as

0.0089 moles

Hope this helps you