What is the mass of 3.01 x 10^21 atoms of Co

0.295 g Co

General Formulas and Concepts:

Chemistry - Atomic Structure

Explanation:

Step 1: Define

3.01 × 10²¹ atoms Co

Step 2: Identify Conversions

Avogadro's Number

Molar Mass of Co - 58.93 g/mol

Step 3: Convert

= 0.294552 g Co

Step 4: Check

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

0.294552 g Co ≈ 0.295 g Co

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