How many atoms are in 2.37 moles of Krypton

1.43 × 10²⁴ atoms Kr

General Formulas and Concepts:

Chemistry - Atomic Structure

Explanation:

Step 1: Define

2.37 mol Kr

Step 2: Convert

= 1.42721 × 10²⁴ atoms Kr

Step 3: Check

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

1.42721 × 10²⁴ atoms Kr ≈ 1.43 × 10²⁴ atoms Kr

i believe it is-

d.) gravity pulled particles of dust and gas together to form planets.