Question

-Particle Conversions How many moles of Lithium are in 7.15 x 1024 atoms of Lithium?

Answer 1

Answer:

The answer is 11.88 moles

Explanation:

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

$n = \frac{N}{L}$

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 we have

$n = \frac{7.15 \times {10}^{24} }{6.02 \times {10}^{23} } \\ = 11.87707641...$

We have the final answer as

11.88 moles

Hope this helps you