Question

Convert 3.02 x 1024 molecules of carbon (C) to moles.

Answer 1

5.02 mol C

Step-by-step explanation:

Step 1: Define

Avagadro's Number - 6.02 × 10²³ atoms, molecules, formula units, etc.

Step 2: Use Dimensional Analysis

`3.02(10)^(24) \hspace{3} molecules \hspace{3} C(\frac{1 \hspace{3} mol \hspace{3} C}{6.02(10)^(23) \hspace{3} molecules \hspace{3} C} )` = 5.01661 mol C

Step 3: Simplify

We have 3 sig figs.

5.01661 mol C ≈ 5.02 mol C