Console the setup below and then calculate how many molecules are in 15.0 grams CO2

Question

15.0 g CO2 x ?/? X ?/?=?

Answer 1

Good afternoon. We can solve this problem in two steps.

Step 1: convert grams of CO₂ to moles of CO₂

Step 2: convert moles of CO₂ to molecules of CO₂

(15.0g CO₂) X (1 mol CO₂ / 44.01g) X (6.02 x 10²³ molecules / 1 mol) = 2.05 x 10²³ molecules