How many moles is ( 1 x 10^9 ) molecules O2

Question

asked Dec 19, 2021 206k views

1 Answer

Leejoy · Answer 1 · 2021-12-26T08:56:04+0000

Answer:

The answer is

$1.66 * {10}^( - 15) \: \: moles$

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 we have

$n = \frac{1 * {10}^(9) }{6.02 * {10}^(23) } \\$

We have the final answer as

$1.66 * {10}^( - 15) \: \: moles$

Hope this helps you