1. Find the molar mass of carbon dioxide (CO₂):

* Carbon (C) has a molar mass of 12.01 g/mol

* Oxygen (O) has a molar mass of 16.00 g/mol

* CO₂ has a molar mass of 12.01 + (16.00 x 2) = 44.01 g/mol

2. Use the formula:

* moles = mass / molar mass

3. Plug in the values:

* moles = 19 g / 44.01 g/mol

* moles ≈ 0.43 mol

Therefore, there are approximately 0.43 moles of carbon dioxide in 19 grams.