Question

The # molecules in 52.1 grams of NH4OH

Answer 1

Step-by-step explanation:

Hey there!

From question;

The molecular mass of NH₄OH is 35.

Avogadro number = 6.023*10²³ molecules.

Then,

From mole concept,

Molecular mass = Avogadro number

So, 35 grams contains 6.023*10²³ molecules.

1 gram contains
`( 6.023*10^(23) )/(35)` molecules.

52.1 grams contains
`(6.023*10^(23) )/(35) *52.1` molecules.

Therefore, 52.1 grams contains 8.96*10²³ molecules.

Hope it helps!