Question

How many moles are I 24.0x10^18 molecules NaOH?

Answer 1

Answer:

$\huge 3.986 \times { 10}^{ - 5} \: \: mol$

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

$n = \frac{24 \times {10}^{18} }{6.02 \times {10}^{23} } \\ \\ = 3.986 \times { 10}^{ - 5} \: \: mol$

Hope this helps you