Calculadora de Contagem de Moléculas — Formula

## How to Count Molecules

### Formula

**N = (mass / molar mass) × 6.022 × 10^23**

Exemplo Resolvido

How many molecules in 18 g of water?

  1. Moles = 18 / 18.015 = 0.999 mol
  2. Molecules = 0.999 × 6.022 × 10^23 ~ 6.02 × 10^23