54.2 g N
determine the number of moles

3.87 mol N

General Formulas and Concepts:

Chemistry - Atomic Structure

Explanation:

Step 1: Define

54.2 g N

Step 2: Identify Conversions

Molar Mass of N - 14.01 g/mol

Step 3: Convert

= 3.86867 mol N

Step 4: Check

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

3.86867 mol N ≈ 3.87 mol N

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