Question

How many atoms are there in 5.00 mol of sulphur (S)?

Answer 1

3.01 × 10²⁴ atoms S

General Formulas and Concepts:

Chemistry - Atomic Structure

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

Step-by-step explanation:

Step 1: Define

5.00 mol S

Step 2: Identify Conversions

Avogadro's Number

Step 3: Convert

`5.00 \ mol \ S((6.022 \cdot 10^(23) \ atoms \ S)/(1 \ mol \ S) )` = 3.011 × 10²⁴ atoms S

Step 4: Check

We are given 3 sig figs. Follow sig fig rules and round.

3.011 × 10²⁴ atoms S ≈ 3.01 × 10²⁴ atoms S