Chapter 3, Problem 102QRT

(a)

Interpretation Introduction

Interpretation:

If 5 mole of each reactant is present in the reaction, the limiting reagent has to be determined.

  ${\text{4 KOH + 2 MnO}}_{\text{2}}{\text{ + O}}_{\text{2}}{\text{ + Cl}}_{\text{2}}\to {\text{2 KMnO}}_{\text{4}}{\text{+ 2 KCl + 2 H}}_{\text{2}}\text{O}$

Concept introduction:

Limiting reagent:

A limiting reactant is a reactant that is completely converted to products. Once all the limiting reactant is converted to products there is no other reactant to react.

Number of moles can be calculated by using following formula,

  $\text{No}\text{.of Moles = }\frac{\text{Mass}}{\text{Molar}\text{mass}}$

(b)

Interpretation Introduction

Interpretation:

5 grams of each reactant is present in the reaction, the limiting reagent has to be determined.

  ${\text{4 KOH + 2 MnO}}_{\text{2}}{\text{ + O}}_{\text{2}}{\text{ + Cl}}_{\text{2}}\to {\text{2 KMnO}}_{\text{4}}{\text{+ 2 KCl + 2 H}}_{\text{2}}\text{O}$

Concept introduction:

Refer to part (a)