Question

How many moles are in 4.718 x 10^24 particles of H2O?

Answer 1

7.835 moles of H2O.

Step-by-step explanation:

What is given?

Particles of H2O = 4.718 x 10²⁴ particles.

Avogadro's number = 6.022 x 10²³ particles /mol.

Step-by-step solution:

To find the moles in a certain number of particles, we have to use Avogadro's number which is 6.022 x 10²³ particles/mol. This is telling us that there are 6.022 x 10²³ particles of a certain compound in 1 mol. The conversion from particles to moles will look like this:

`4.718\cdot10^(24)particle\text{s H}_2O\cdot\frac{1\text{ mol }}{6.022\cdot10^(23)\text{ particles}}=7.835\text{ moles H}_2O.`

The answer is that there are 7.835 moles of H2O in 4.718 x 10²⁴ particles of H2O.