Chemistry: Matter and Change
Chemistry: Matter and Change
1st Edition
ISBN: 9780078746376
Author: Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom
Publisher: Glencoe/McGraw-Hill School Pub Co
bartleby

Concept explainers

bartleby

Videos

Question
Book Icon
Chapter 11, Problem 119A
Interpretation Introduction

Interpretation:

The reactant present in excess and the mass of the reactant needs to be determined.

Concept introduction:

Excess reactant is the reactant which is present in excess amount and left over after completion of reaction.

Expert Solution & Answer
Check Mark

Answer to Problem 119A

Excess reactant is the reactant which is present in excess amount and left over after completion of reaction.

Hydroquinone is excess reactant. 45.1 mg of hydroquinone was left.

Explanation of Solution

Molecular mass of hydroquinone is 110 g/mol.

numberofmolesofHydroquinone=MassofHydroquinoneMolarmassofHydroquinone=100mg110g/mol=0.90mmoles

Or,

numberofmolesofH2O2=MassofH2O2MolarmassofH2O2=50mg34g/mol=1.47mmoles

The chemical reaction is as follows:

Chemistry: Matter and Change, Chapter 11, Problem 119A

From the stoichiometry of reaction.

For hydroquinone,

1molesofHydroquinoneproduce=1molesofbenzoquinone0.90mmolesofHydroquinoneproduce=1×0.9mmolesofbenzoquinone0.90mmolesofHydroquinoneproduce=0.9mmolesofbenzoquinone

For H2O2,

3molesofH2O2produce=1molesofBenzoquinone1molesofH2O2produce=13molesofBenzoquinone1.47×1mmolesofH2O2produce=1.47×13mmolesofBenzoquinone1.47mmolesofH2O2produce=0.49mmolesofBenzoquinone

The reactant which produces least amount of product is limiting reagent. So, H2O2 act as the limiting reagent. And hydroquinone acts as excess reactant. Only 0.49 mmoles of benzoquinone was formed. So, according to reaction stoichiometry, 0.49 mmoles of benzoquinone consume 0.49 mmoles of hydroquinone.

The excess hydroquinone = total mmoles of hydroquinone − mmoles of hydroquinone consumed

= 0.9- 0.49

= 0.41 mmoles

Mass of hydroquinone left = 0.41 × 110 = 45.1 mg.

Chapter 11 Solutions

Chemistry: Matter and Change

Ch. 11.2 - Prob. 11PPCh. 11.2 - Prob. 12PPCh. 11.2 - Prob. 13PPCh. 11.2 - Prob. 14PPCh. 11.2 - Prob. 15PPCh. 11.2 - Prob. 16PPCh. 11.2 - Prob. 17SSCCh. 11.2 - Prob. 18SSCCh. 11.2 - Prob. 19SSCCh. 11.2 - Prob. 20SSCCh. 11.2 - Prob. 21SSCCh. 11.2 - Prob. 22SSCCh. 11.3 - Prob. 23PPCh. 11.3 - Prob. 24PPCh. 11.3 - Prob. 25SSCCh. 11.3 - Prob. 26SSCCh. 11.3 - Prob. 27SSCCh. 11.4 - Prob. 28PPCh. 11.4 - Prob. 29PPCh. 11.4 - Prob. 30PPCh. 11.4 - Prob. 31SSCCh. 11.4 - Prob. 32SSCCh. 11.4 - Prob. 33SSCCh. 11.4 - Prob. 34SSCCh. 11.4 - Prob. 35SSCCh. 11 - Prob. 36ACh. 11 - Prob. 37ACh. 11 - Prob. 38ACh. 11 - Prob. 39ACh. 11 - Prob. 40ACh. 11 - Prob. 41ACh. 11 - Prob. 42ACh. 11 - Prob. 43ACh. 11 - Interpret the following equation in terms of...Ch. 11 - Smelting When tin(IV) oxide is heated with carbon...Ch. 11 - When solid copper is added to nitric acid, copper...Ch. 11 - When hydrochloric acid solution reacts with lead...Ch. 11 - When aluminum is mixed with iron(lll) oxide, iron...Ch. 11 - Solid silicon dioxide, often called silica, reacts...Ch. 11 - Prob. 50ACh. 11 - Prob. 51ACh. 11 - Prob. 52ACh. 11 - Antacids Magnesium hydroxide is an ingredient in...Ch. 11 - Prob. 54ACh. 11 - Prob. 55ACh. 11 - Prob. 56ACh. 11 - Prob. 57ACh. 11 - Prob. 58ACh. 11 - Prob. 59ACh. 11 - Ethanol (C2H5OH) , also known as grain alcohol,...Ch. 11 - Welding If 5.50 mol of calcium carbide (CaC2)...Ch. 11 - Prob. 62ACh. 11 - Prob. 63ACh. 11 - Prob. 64ACh. 11 - Prob. 65ACh. 11 - Prob. 66ACh. 11 - Prob. 67ACh. 11 - Prob. 68ACh. 11 - Prob. 69ACh. 11 - Prob. 70ACh. 11 - Prob. 71ACh. 11 - Prob. 72ACh. 11 - Prob. 73ACh. 11 - Prob. 74ACh. 11 - Prob. 75ACh. 11 - Prob. 76ACh. 11 - Prob. 77ACh. 11 - Prob. 78ACh. 11 - Prob. 79ACh. 11 - Prob. 80ACh. 11 - Prob. 81ACh. 11 - Prob. 82ACh. 11 - Prob. 83ACh. 11 - Prob. 84ACh. 11 - Prob. 85ACh. 11 - Prob. 86ACh. 11 - Prob. 87ACh. 11 - Prob. 88ACh. 11 - Prob. 89ACh. 11 - Prob. 90ACh. 11 - Lead(ll) oxide is obtained by roasting galena,...Ch. 11 - Prob. 92ACh. 11 - Prob. 93ACh. 11 - Prob. 94ACh. 11 - Prob. 95ACh. 11 - Prob. 96ACh. 11 - Prob. 97ACh. 11 - Ammonium sulfide reacts With copper(ll) nitrate in...Ch. 11 - Fertilizer The compound calcium cyanamide (CaNCN)...Ch. 11 - When copper(ll) oxide is heated in the presence Of...Ch. 11 - Air Pollution Nitrogen monoxide, which is present...Ch. 11 - Electrolysis Determine the theoretical and percent...Ch. 11 - Iron reacts with oxygen as Shown....Ch. 11 - Analyze and Conclude In an experiment, you obtain...Ch. 11 - Observe and Infer Determine whether each reaction...Ch. 11 - Design an Experiment Design an experiment that can...Ch. 11 - Apply When a campfire begins to die down and...Ch. 11 - Apply Students conducted a lab to investigate...Ch. 11 - When 9.59 g of a certain vanadium oxide is heated...Ch. 11 - Prob. 110ACh. 11 - Prob. 111ACh. 11 - Prob. 112ACh. 11 - Prob. 113ACh. 11 - Prob. 114ACh. 11 - Prob. 115ACh. 11 - Prob. 116ACh. 11 - Prob. 117ACh. 11 - Prob. 118ACh. 11 - Prob. 119ACh. 11 - Prob. 120ACh. 11 - Prob. 1STPCh. 11 - Prob. 2STPCh. 11 - Prob. 3STPCh. 11 - Prob. 4STPCh. 11 - Prob. 5STPCh. 11 - Prob. 6STPCh. 11 - Prob. 7STPCh. 11 - Prob. 8STPCh. 11 - Prob. 9STPCh. 11 - Prob. 10STPCh. 11 - Prob. 11STPCh. 11 - Prob. 12STPCh. 11 - Prob. 13STPCh. 11 - Prob. 14STPCh. 11 - Prob. 15STPCh. 11 - Prob. 16STPCh. 11 - Prob. 17STP
Knowledge Booster
Background pattern image
Chemistry
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.
Recommended textbooks for you
Text book image
Chemistry
Chemistry
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Cengage Learning
Text book image
Chemistry
Chemistry
ISBN:9781259911156
Author:Raymond Chang Dr., Jason Overby Professor
Publisher:McGraw-Hill Education
Text book image
Principles of Instrumental Analysis
Chemistry
ISBN:9781305577213
Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:Cengage Learning
Text book image
Organic Chemistry
Chemistry
ISBN:9780078021558
Author:Janice Gorzynski Smith Dr.
Publisher:McGraw-Hill Education
Text book image
Chemistry: Principles and Reactions
Chemistry
ISBN:9781305079373
Author:William L. Masterton, Cecile N. Hurley
Publisher:Cengage Learning
Text book image
Elementary Principles of Chemical Processes, Bind...
Chemistry
ISBN:9781118431221
Author:Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
Publisher:WILEY
Bonding (Ionic, Covalent & Metallic) - GCSE Chemistry; Author: Science Shorts;https://www.youtube.com/watch?v=p9MA6Od-zBA;License: Standard YouTube License, CC-BY
Stoichiometry - Chemistry for Massive Creatures: Crash Course Chemistry #6; Author: Crash Course;https://www.youtube.com/watch?v=UL1jmJaUkaQ;License: Standard YouTube License, CC-BY