Question

Acetic acid has the molecular formula CH3COOH. How many atoms of oxygen are there in 60 grams of acetic acid?​

Answer 1

1.2046x10²⁴ atoms

Step-by-step explanation:

First we convert 60 grams of acetic acid into moles of acetic acid, using its molar mass:

• 60 g ÷ 60 g/mol = 1 mol

Then we double the number of acetic acid moles, as there are two oxygen moles per acetic acid mole.

• 1 mol CH₃COOH * 2 = 2 mol O

Finally we convert moles into number of atoms, using Avogadro's number:

• 2 mol O * 6.023x10²³ atoms/mol = 1.2046x10²⁴ atoms