Question

QUESTION 4

How many moles are in 3.2 x 1024 of CO2 molecules? (round answer to the correct number of sig figs)

Answer 1

5.3 mol CO₂

General Formulas and Concepts:

Chemistry - Stoichiometry

• Dimensional Analysis
• Avogadro's Number - 6.022 × 10²³ atoms, molecules, formula units, etc.

Step-by-step explanation:

Step 1: Define

3.2 × 10²⁴ molecules CO₂

Step 2: Convert

`3.2 \cdot 10^(24) \ mc \ CO_2((1 \ mol \ CO_2)/(6.022 \cdot 10^(23) \ mc \ CO_2) )` = 5.31385 mol CO₂

Step 3: Check

We are given 2 sig figs. Follow sig fig rules.

5.31385 mol CO₂ ≈ 5.3 mol CO₂