Chapter 18.2, Problem 11LC

Interpretation Introduction

Interpretation: The explanation for how one can use a graph of reactant concentration versus time for determining the rate of a reaction is to be stated.

Concept Introduction: The rate of a chemical reaction is generally expressed as the reactant’s concentration consumed and product’s concentration formed per unit time.

Answer to Problem 11LC

By drawing a line tangent to the graph, the rate of the reaction is determined. The slope of the tangent to the curve at any point gives the rate of the reaction at that point.

Explanation of Solution

If a graph is drawn between the concentrations of the reactant then by drawing a line tangent to the graph, the rate of the reaction is determined. The slope of the tangent to the curve at any point gives the rate of the reaction at that point.