Respuesta :

Space

Answer:

31 mol N₂

General Formulas and Concepts:

Chemistry - Stoichiometry

  • Using Dimensional Analysis

Explanation:

Step 1: Define

25 mol HCl

Step 2: Identify Conversions

RxN:   4 mol HCl = 5 mol N₂

Step 3: Stoichiometry

[tex]25 \ mol \ HCl(\frac{5 \ mol \ N_2}{4 \ mol \ HCl} )[/tex] = 31.25 mol N₂

Step 4: Check

We are given 2 sig figs. Follow sig fig rules and round.

31.25 mol N₂ ≈ 31 mol N₂