BuyFindarrow_forward

Chemistry

9th Edition
Steven S. Zumdahl
ISBN: 9781133611097

Solutions

Chapter
Section
BuyFindarrow_forward

Chemistry

9th Edition
Steven S. Zumdahl
ISBN: 9781133611097
Textbook Problem

At a certain temperature, K = 9.1 × 10-4 for the reaction

FeSCN 2 + ( a q ) Fe 3 + ( a q ) + SCN ( a q )

Calculate the concentrations of Fe3+, SCN-, and FeSCN2+ in a solution that is initially 2.0 M FeSCN2+.

Interpretation Introduction

Interpretation: The equilibrium constant and initial concentration of reactant for a given reaction is given. The value of concentration of all species is to be calculated.

Concept introduction: The state when the reactants involved in a chemical reaction and the products formed in the reaction exist in concentrations having no further tendency to change is known as an equilibrium state of the reaction.

For a reaction,

jA+kBlC+mD

The equilibrium constant is given by,

K=[C]l[D]m[A]j[B]k

To determine: The equilibrium concentration of [Fe3+] , [SCN] and [FeSCN2+] for the given reaction.

Explanation

Explanation

Given

The equilibrium constant is 9.1×104 .

The initial concentration of reactant is 2.0M .

The given reaction is,

FeSCN2+(aq)Fe3+(aq)+SCN(aq)

The initial concentration of product Fe3+ and SCN is zero.

It is assumed that the change in concentration of FeSCN2+ is x .

Make the ICE table for the given reaction.

FeSCN2+(aq)Fe3+(aq)SCN(aq)Initial(M):2.000Change(M):xxxEquilibrium(M):2.0xxx

At equilibrium, the equilibrium constant is expressed by the formula,

K=ConcentrationofproductsConcentrationofreactants

Where,

  • K is the equilibrium constant.

The equilibrium constant for the given reaction is,

K=[Fe3+][SCN][FeSCN2+]

Substitute the value of K and equilibrium concentration values in the above expression

Still sussing out bartleby?

Check out a sample textbook solution.

See a sample solution

The Solution to Your Study Problems

Bartleby provides explanations to thousands of textbook problems written by our experts, many with advanced degrees!

Get Started

Chapter 13 Solutions

Show all chapter solutions add

Additional Science Solutions

Find more solutions based on key concepts

Show solutions add

Experimenting with portion sizes at home is a valuable exercise in self-education. T F

Nutrition: Concepts and Controversies - Standalone book (MindTap Course List)

Why do hot stars look bluer than cool stars?

Horizons: Exploring the Universe (MindTap Course List)

Match the terms and definitions.

Human Biology (MindTap Course List)

___ causes the pupil to widen. a. Low light b. Bright light

Biology: The Unity and Diversity of Life (MindTap Course List)

When a 4.00-kg object is hung vertically on a certain light spring that obeys Hookes law, the spring stretches ...

Physics for Scientists and Engineers, Technology Update (No access codes included)