What is Avogadro’s number?

Avogadro’s number is 6.022 × 10²³. It’s the number of atoms or molecules in one mole of any substance.

Why do we use moles in chemistry?

Because atoms and molecules are incredibly tiny and numerous. Moles let us work with manageable numbers when doing chemical calculations.

m= Mass

1500

M= Molar Mass

g/mol

1300

결과

1mol

X축 변수

mmol

1 (one)1

12 (one dozen)12

144 (one gross)144

1,000 (one thousand)1,000

1,000,000 (one million)1.00e+6

1,000,000,000 (one billion)1.00e+9

1,000,000,000,000 (one trillion)1.00e+12

6.022 × 10²³ (Avogadro’s number = 1 mole)6.02e+23

💧18.0g of water is about 18.0 mL — roughly a tablespoon for 18g

🔬6.02e+23 particles (1.000 mol)

🌍If you stacked 1 mole of paper sheets, the stack would reach from Earth to Pluto and back 8 billion times!

Each dot represents a tiny fraction of 1.000 mol of particles