Question

There are molecules of carbon dioxide (CO2) in 102.5 grams.

Answer 1

Answer:

1.403x10²⁴ molecules

Explanation:

In order to calculate how many molecules of CO₂ are there in 102.5 g of the compound, we first convert grams to moles using its molar mass:

• 102.5 g ÷ 44 g/mol = 2.330 mol CO₂

Now we convert moles into molecules using Avogadro's number:

• 2.330 mol * 6.023x10²³ molecules/mol = 1.403x10²⁴ molecules