Log out Go to App
Go to App

Learning Materials

Features

Discover

Chapter 4: Q.64. (page 128)

Question: Draw the products of combustion of each alkane.

a.

b.

Short Answer

Expert verified

Answer

a.7CO2and8H2Ob.4CO2and5H2O

Step by step solution

01

Combustion reaction

In a combustion reaction, a substance burns in the presence of oxygen (excess of air) to give carbon dioxide gas and water as the only reaction products.

The products of combustion reactions always remain the same irrespective of the reactant materials. The initial substance undergoing the combustion reaction is generally called a fuel.

02

Combustion of alkanes

Combustion requires a flame or spark for the initiation of the reaction.

When alkanes undergo combustion, all of their C-H bonds and C-C bonds break to form new C-O bonds.

03

Combustion reactions of the given alkanes

a. The given compound 2-methylhexane reacts with the oxygen in the air to give seven moles of carbon dioxide gas and eight moles of water.


CH3-CH2-CH2-CH2-CHCH32+11O2→Flame7CO2+8H2O2-methylhexane


b. The given compound butane undergoes combustion to form four moles of carbon dioxide gas and five moles of water.


CH3-CH2-CH2-CH3+132O2→Flame4CO2+5H2O

Unlock Step-by-Step Solutions & Ace Your Exams!

  • Full Textbook Solutions

    Get detailed explanations and key concepts

  • Unlimited Al creation

    Al flashcards, explanations, exams and more...

  • Ads-free access

    To over 500 millions flashcards

  • Money-back guarantee

    We refund you if you fail your exam.

Start your free trial

Over 30 million students worldwide already upgrade their learning with Vaia!

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Most popular questions from this chapter

Question: a. Using Newman projections, draw all staggered and eclipsed conformations that result from rotation around the bond highlighted in pink in each molecule;

b. draw a graph of energy versus dihedral angle for rotation around this bond.

Question: For each compound drawn below:

a. Draw representations for the cis and trans isomers using a hexagon for the six membered ring, and wedges and dashed wedges for substituents.

b. Draw the two possible chair conformations for the cis isomer. Which conformation, if either, is more stable?

c. Draw the two possible chair conformations for the trans isomer. Which conformation, if either, is more stable?

d. Which isomer, cis or trans, is more stable and why?

Question: Draw a chair conformation of cyclohexane with one CH3CH2 group and one role="math" localid="1648542173942" CH3 group that fits each description.

  1. a 1,1-disubstituted cyclohexane with an axial role="math" localid="1648542231267" CH3CH2 group
  2. a cis-1,2-disubstituted cyclohexane with an axial role="math" localid="1648542270917" CH3 group
  3. a trans-1,3-disubstituted cyclohexane with an equatorial CH3 group
  4. a trans-1,4-disubstituted cyclohexane with an equatorialCH3CH2 group

Question: Draw a second chair conformation for each cyclohexane. Then decide which conformation is present in higher concentration at equilibrium.

a.

b.

c.

Question: Give the IUPAC name for each compound.


j
See all solutions

Recommended explanations on Chemistry Textbooks

Making Measurements

Read Explanation

Physical Chemistry

Read Explanation

Chemical Reactions

Read Explanation

Inorganic Chemistry

Read Explanation

Chemistry Branches

Read Explanation

Chemical Analysis

Read Explanation
View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Study anywhere. Anytime. Across all devices.

Sign-up for free