/*! This file is auto-generated */ .wp-block-button__link{color:#fff;background-color:#32373c;border-radius:9999px;box-shadow:none;text-decoration:none;padding:calc(.667em + 2px) calc(1.333em + 2px);font-size:1.125em}.wp-block-file__button{background:#32373c;color:#fff;text-decoration:none} Problem 26 Draw all structural and geometri... [FREE SOLUTION] | 91影视

91影视

Log out

Learning Materials

Features

Discover

Chapter 25: Problem 26

Draw all structural and geometric isomers of butene and name them.

Short Answer

Expert verified
The three isomers of butene are: 1. 1-butene: CH_2=CHCH_2CH_3 2. cis-2-butene (Z-but-2-ene): CH_3CH=CHCH_3 (methyl groups on the same side) 3. trans-2-butene (E-but-2-ene): CH_3CH=CHCH_3 (methyl groups on opposite sides)

Step by step solution

01

Determine molecular formula of butene

Butene is an alkene with four carbon atoms and a double bond. So its molecular formula is C_4H_8.
02

Draw the structural isomers

To draw the structural isomers of butene, we need to rearrange the position of the double bond and check if we can create any new structures: 1. Double bond at the first carbon atom: CH_2=CHCH_2CH_3 2. Double bond at the second carbon atom: CH_3CH=CHCH_3 Now, let's name these structural isomers, using IUPAC nomenclature: 1. CH_2=CHCH_2CH_3: The double bond is located at C-1. Hence, the name for this compound will be 1-butene. 2. CH_3CH=CHCH_3: The double bond is located at C-2. Hence, the name for this compound will be 2-butene.
03

Draw the geometric isomers

Now we will focus on drawing the geometric isomers of the newly found structural isomers. 1-butene does not have any geometric isomers, as the two hydrogens on the first carbon make it impossible to distinguish between cis and trans forms. For the second structural isomer, 2-butene, we can have two geometric isomers: 1. The two methyl (CH_3) groups are on the same side of the double bond (cis form). We call it (Z)-but-2-ene or cis-2-butene. 2. The two methyl (CH_3) groups are on opposite sides of the double bond (trans form). We call it (E)-but-2-ene or trans-2-butene. Thus, butene has a total of three isomers: 1-butene, cis-2-butene (Z-but-2-ene), and trans-2-butene (E-but-2-ene).

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.

Over 30 million students worldwide already upgrade their learning with 91影视!

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

Are carbon monoxide or ammonia considered organic molecules? Why or why not?

Aldehydes and ketones can be named in a systematic way by counting the number of carbon atoms (including the carbonyl carbon) that they contain. The name of the aldehyde or ketone is based on the hydrocarbon with the same number of carbon atoms. The ending \(-a l\) for aldehyde or -one for ketone is added as appropriate. Draw the structural formulas for the following aldehydes or ketones: (a) propanal, (b) 2 -pentanone, (c) 3methyl-2-butanone, (d) 2-methylbutanal.

When samples of double-stranded DNA are analyzed, the quantity of adenine present equals that of thymine. Similarly, the quantity of guanine equals that of cytosine. Explain the significance of these observations.

Give the general formula for any cyclic alkene, that is, a cyclic hydrocarbon with one double bond.

Draw the condensed structure of the compounds formed by condensation reactions between (a) benzoic acid and ethanol, (b) ethanoic acid and methylamine, (c) acetic acid and phenol. Name the compound in each case.
See all solutions

Recommended explanations on Chemistry Textbooks

Chemistry Branches

Read Explanation

The Earths Atmosphere

Read Explanation

Making Measurements

Read Explanation

Inorganic Chemistry

Read Explanation

Nuclear Chemistry

Read Explanation

Organic Chemistry

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.