Question

How many moles are in a sample of 3.01 x 10^18 formula units of sodium hydroxide (NaOH)?

Answer 1

Explanation:

We can use the formula to find the number of moles. As ,

`:\implies` n = No. of particles/ N_A

`:\implies` n = 3.01× 10¹⁸/6.022 × 10²³

`:\implies` n = 1/2 / 10⁵

Hence the number of particles is 1/2 / 10⁵