How many formula units are in 1.58 moles of LiOH ? A) 2.53E24 B) 3.79E24 0) 3.49E25 D) 9.51E23

Question

asked Aug 19, 2022 229k views

1 Answer

Tpgould · Answer 1 · 2022-08-24T01:26:00+0000

There are D) 9.51E23

Given

1.58 moles of LiOH

Required

The number of formula units

Solution

The mole is the number of particles(molecules, atoms, ions, formula units) contained in a substance

1 mol = 6.02.10²³ particles

Can be formulated

N=n x No

N = number of particles

n = mol

No = Avogadro's = 6.02.10²³

So for 1.58 moles :

= 1.58 x 6.02 x 10²³

= 9.5116 x 10²³