The mass of iron (III) oxide required should be identified from the given option if the 124 .5 kg of Li undergoes reaction with nitrogen. Concept introduction: Mole ratios between the reactants and products of a reaction are depends upon the coefficients of respective reactant in a balanced chemical equation. Balanced chemical equation of a reaction is written according to law of conservation of mass. Number of moles of a substance, from its given mass is, Number of moles = Given mass Molecular mass Number of grams of a substance from its number of moles is, Number of moles × Molecular mass in grams = Number of grams

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Chapter 8.3, Problem 8.3.3SR

Interpretation Introduction

Interpretation:

The mass of iron (III) oxide required should be identified from the given option if the 124.5 kg of Li undergoes reaction with nitrogen.

Concept introduction:

Mole ratios between the reactants and products of a reaction are depends upon the coefficients of respective reactant in a balanced chemical equation.

Balanced chemical equation of a reaction is written according to law of conservation of mass.

Number of moles of a substance, from its given mass is,

Number of moles = Given massMolecular mass

Number of grams of a substance from its number of moles is,

Number of moles × Molecular mass in grams = Number of grams

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