Question

What is the mass of 4 molecules of CO2

Answer 1

2.923 × 10⁻²² g

Step-by-step explanation:

We must convert molecules of CO₂ to moles and then to grams of CO₂.

Step 1. Convert molecules to moles

Moles of CO₂ = 4 molecules CO₂ × (1 mol CO₂/6.022 × 10²³ molecules CO₂)

= 6.642 × 10⁻²⁴ mol CO₂

Step 2. Convert moles to grams

Mass of CO₂ = 6.642 × 10⁻²⁴ mol CO₂ × (44.01 g CO₂/1 mol CO₂)

= 2.923 × 10⁻²² g CO₂