Question

How many moles in 1.505x10^23 Na atoms

Answer 1

The answer is 0.25 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) \\`

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question

N = 1.505 × 10²³ Na atoms

We have

`n = \frac{1.505 * {10}^(23) }{6.02 * {10}^(23) } = (1)/(4) \\`

We have the final answer as

0.25 moles

Hope this helps you