Organic Chemistry

Theoretical yield

Theoretical yield

The alcohol in "gasohol" burns according to the following equation:
C2H5OH (l) + 3 O2 (g)  2 CO2 (g) + 3 H2O (l)
a) What is the theoretical yield of carbon dioxide when 12.5 g of ethanol, C2H5OH, reacts with 35.0 g of oxygen?

hello056   36   1 Reply

Anonymous

Which choice shows the transition state for the given SN2 reaction?

Which choice shows the transition state for the given SN2 reaction?

[html]Question 1.Which potential energy diagram describes the SN2 reaction shown?

alireads   49   2 Replies

Mamoonah Hassan

Line angle struc utre of ch2ch2ch(oh)ch(ch3)2

Line angle struc utre of ch2ch2ch(oh)ch(ch3)2

line angle struc utre of ch2ch2ch(oh)ch(ch3)2

Nidhi Patel7   39   1 Reply

bio_man

Arrange the compounds shown in decreasing (strongest to weakest) order of basicity.

Arrange the compounds shown in decreasing (strongest to weakest) order of basicity.

[html]Question 1.Arrange the compounds shown in decreasing (strongest to weakest) order of basicity.

sam3359   69   2 Replies

Rosa1

What is the structure of a molecule with that has an integration of 9H, 3H, 1H?

What is the structure of a molecule with that has an integration of 9H, 3H, 1H?

[html]Question 1.What is the structure of a molecule with that has an integration of 6H, 2H, 1H, and 1H?

▸ CH3C(O)CH2CH

danby   153   2 Replies

A J4

Pyridoxamine, aka vitamin B6, has the structure shown. Which nitrogen is more basic and why?

Pyridoxamine, aka vitamin B6, has the structure shown. Which nitrogen is more basic and why?

[html]Pyridoxamine, aka vitamin B6, has the structure shown. Which nitrogen is more basic and why?

kady   131   2 Replies

Roberta30730503

Which reagents are appropriate to carry out the conversion shown?

Which reagents are appropriate to carry out the conversion shown?

[html]Question 1.Which of the choices is most likely to act as a base rather than a nucleophile?

djchewinggum   40   2 Replies

Edwin Ortega

For the following compound, what is the hybridization and molecular geometry at the indicated atoms.

For the following compound, what is the hybridization and molecular geometry at the indicated atoms.

[html]For the following compound, what is the hybridization and molecular geometry at the indicated atoms.

ogf78   30   2 Replies

sarah2727

Which arrow(s) identifies the nucleophilic center(s) in the molecule shown?

Which arrow(s) identifies the nucleophilic center(s) in the molecule shown?

[html]Question 1.Which arrow(s) identifies the nucleophilic site(s) in the molecule shown?

johndoris   40   2 Replies

Praveen Dhakar

Which of the following is 1-cyclopropyl-3-methylcyclopentane?

Which of the following is 1-cyclopropyl-3-methylcyclopentane?

[html]Which of the following is 1-cyclopropyl-3-methylcyclopentane?

bluewiss   35   2 Replies

Claudia Mugo

Uranium + Bismuth chain reaction in a nuclear reactor.

Uranium + Bismuth chain reaction in a nuclear reactor.

What will be the chain reaction of Uranium + Bismuth (Combination) in a nuclear reactor?

Prashant S Akerkar

prashantakerkar   165   3 Replies

bio_man

How would you improve yield/purity using thermodynamics, stoichiometry, or kinetics?

How would you improve yield/purity using thermodynamics, stoichiometry, or kinetics?

How would you determine the success or failure of an experiment using thermodynamics, kinetics, or stoichiometry? How would you improve yield/purity using thermodynamics, stoichiometry, or kinetics, using literature values?

I.e. the synthe

sdgdsg   94   1 Reply

linlinlin

Which of the given descriptions is(are) consistent with biodegradable polymers?

Which of the given descriptions is(are) consistent with biodegradable polymers?

[html]Question 1.Which of the given processes is(are) used in the recycling of soft drink bottles made of PET?

▸ acid hydrolysis

▸ esterification

▸ melting

▸ B and C

▸ none of theseQuestion 2.

RHCP12   113   1 Reply

melryandion

Which of the given functional groups are common in biodegradable polymers?

Which of the given functional groups are common in biodegradable polymers?

[html]Question 1.Which of the given monomer(s) are used to prepare the polymer Bakelite?

▸ thermoplastics

▸ phenol and formaldehyde

▸ phenol and acetaldehyde

▸ phenol and methanol

▸ none of theseQuest

bundlecrap   120   1 Reply

bhturner

The strength of the thermosetting polymers like Bakelite is due to ________.

The strength of the thermosetting polymers like Bakelite is due to ________.

[html]Question 1.Which of the choices is the best classification of the polymer Bakelite?

▸ fibers

▸ elastomers

▸ plasticizers

▸ thermoplastics

▸ thermosetting resinsQuestion 2.The streng

tennisalex   89   1 Reply

nursethomas

Which of the choices is the best classification of Nylon?

Which of the choices is the best classification of Nylon?

[html]Question 1.Which of the choices is the best classification of chewing gum?

▸ fibers

▸ elastomers

▸ plasticizers

▸ thermoplastics

▸ thermosetting resinsQuestion 2.Which of the choice

unrendezvous   94   1 Reply

ryan_navarro5

Which of the choices is the best classification of crystalline polymers with high tensile strength?

Which of the choices is the best classification of crystalline polymers with high tensile strength?

[html]Question 1.Which of the choices best describe elastomers?

▸ polymers that can form fibers

▸ polymers that are hard at room temperature

▸ polymers that return to original shape after being stretched

▸ small molecules

Kss612   81   1 Reply

naderaide

Which of the given polymers is(are) classified as elastomers?

Which of the given polymers is(are) classified as elastomers?

[html]Question 1.Which one of the choices is the best classification of an amorphous polymer that is flexible?

▸ fibers

▸ thermosetting resins

▸ plasticizers

▸ elastomers

▸ thermoplasticsQuestion 2.

Godty   64   1 Reply

janel989

Addition of ________ to thermoplastics increases flexibility of the polymer.

Addition of ________ to thermoplastics increases flexibility of the polymer.

[html]Question 1.Which of the given polymers is(are) classified as thermoplastics?

▸ LDPE

▸ PET

▸ HDPE

▸ PVC

▸ all of theseQuestion 2.Addition of ________ to thermoplastics increases flex

karamvir19   68   1 Reply

pigglyoink14

Which of the given polymers are hard at room temperature and soft at high temperature?

Which of the given polymers are hard at room temperature and soft at high temperature?

[html]Question 1.The melt transition temperature (Tm), is the temperature at which the ________ regions of the polymers become ________.

▸ cry

harry32   58   1 Reply

rl679

The glass transition temperature (Tg), is the temperature at which the ________ regions of the ...

The glass transition temperature (Tg), is the temperature at which the ________ regions of the ...

[html]Question 1.________ regions in polymers make the polymer flexible.

▸ Amorphous

▸ Crystalline

▸ Cross linked

▸ B and C

▸ none of theseQuestion 2.The glass transition temperature (

dbomb1   62   1 Reply

lyssa1605

________ regions in polymers make the polymer hard and durable.

________ regions in polymers make the polymer hard and durable.

[html]Question 1.Which of the choices best describes crystallites?

▸ linearly arranged chains with disulfide bridges

▸ linearly arranged chains held together by van der Waals forces

▸ hydrogen bonding between chains

▸ cros

prpnum1   64   1 Reply

bryrdan

SBR (styrene-butadiene rubber) is used in the manufacturing of automobile tires. What is the ...

SBR (styrene-butadiene rubber) is used in the manufacturing of automobile tires. What is the ...

[html]Question 1.Neoprene, which is used in gaskets, electrical insulation, and other products, has the structure shown. What is the structure of the monomer?

arunasingh5   61   1 Reply

tk9790

Which of the given elements is used during the vulcanization of rubber?

Which of the given elements is used during the vulcanization of rubber?

[html]Question 1.Vulcanization of rubber results in ________ between the neighboring chains of the polymer.

▸ hydrogen bonding

▸ salt bridges

▸ disulfide bridges

▸ phosphide bridges

▸ none of theseQue

mktrujillo   50   1 Reply

nnenne

Which of the given types of polyethylene is used to make Tupperware?

Which of the given types of polyethylene is used to make Tupperware?

[html]Question 1.Which of the given types of polyethylene is used to make trash bags?

▸ HDPE

▸ MDPE

▸ LDPE

▸ A and C

▸ none of theseQuestion 2.Which of the given types of polyethylene is

pixiedust7891   53   1 Reply

Loveameriah

Free radical polymerization of ethylene results in ________.

Free radical polymerization of ethylene results in ________.

[html]Question 1.Polymerization of ethylene in the presence of a Ziegler-Natta catalyst results in ________.

▸ MDPE

▸ LDPE

▸ HDPE

▸ B and C

▸ none of theseQuestion 2.Free radical polymeri

bmwprincess   52   1 Reply

shanej399

Draw a possible segment of isotactic poly(vinyl acetate).

Draw a possible segment of isotactic poly(vinyl acetate).

[html]Question 1.Draw a possible segment of syndiotactic poly(vinyl fluoride).

Nursesn   58   1 Reply

ndedrick

Draw a possible segment of syndiotactic polyacrylonitrile.

Draw a possible segment of syndiotactic polyacrylonitrile.

[html]Question 1.Draw a possible segment of isotactic polyacrylonitrile.

maryanne.jones3   46   1 Reply

fs125

Draw a possible segment of atactic polyacrylonitrile.

Draw a possible segment of atactic polyacrylonitrile.

[html]Question 1.A syndiotactic polymer has a ________ configuration.

▸ random

▸ alternating

▸ same

▸ block

▸ graftQuestion 2.Draw a possible segment of atactic polyacrylonitrile.

lindseyw   44   1 Reply

naderaide

An atactic polymer has a ________ configuration.

An atactic polymer has a ________ configuration.

[html]Question 1.An isotactic polymer has a ________ configuration.

▸ random

▸ alternating

▸ same

▸ block

▸ graftQuestion 2.An atactic polymer has a ________ configuration.

▸ random

▸ a

adotey   51   1 Reply

nguyenphuc1990

Which of the choices best describes the polymer shown?

Which of the choices best describes the polymer shown?

[html]Question 1.Which of the choices best describes the polymer shown?

lindseyw   59   1 Reply

andrat

Which of the choices best describes the polymer shown?

Which of the choices best describes the polymer shown?

[html]Question 1.Which of the given statements is(are) true about linear polymers?

▸ they are highly branched

▸ they may be slightly branched

▸ they can have no branching

▸ A and B

▸ B and CQuestion 2

ssi15   48   1 Reply

cheesoslimo

What polymer is used in rope?

What polymer is used in rope?

[html]Question 1.What polymer is used in bicycle helmets?

▸ Nylon 6

▸ Teflon

▸ Kevlar

▸ Lexan

▸ Nylon 6,6Question 2.What polymer is used in rope?

▸ Nylon 6

▸ Teflon

▸ Kevlar

▸ Lexan

harry32   55   1 Reply

marcospolos

What is the polymer that is used in bullet-proof vests?

What is the polymer that is used in bullet-proof vests?

[html]Question 1.Provide the structure of a region of the polymer that is produced when isocyanate, shown below, is treated with 1,4-butanediol.

rbayla   56   1 Reply

cheezeh3ad

What monomer(s) would produce the polymer shown?

What monomer(s) would produce the polymer shown?

[html]Question 1.What is the classification of the polymer shown?

JSmith1   59   1 Reply

Keleko12

________ polymers are formed under conditions in which the individual monomers react with each other ...

________ polymers are formed under conditions in which the individual monomers react with each other ...

[html]Question 1.What are the monomers in a polyurethane?

▸ carboxylic acid and amine

▸ diisocyanate and diol

▸ isocyanate and alcohol

▸ amide and alcohol

▸ ester and amineQuestion 2.____

hardy7luver   82   1 Reply

teamroket

Which of the given polymerization processes best describes the formation of polyisobutylene?

Which of the given polymerization processes best describes the formation of polyisobutylene?

[html]Question 1.Which of the given polymerization processes best describes the formation of polyurethanes?

▸ step growth addition

▸ chain growth addition

▸ step growth condensation

▸ chain growth condensation

▸ none of t

swimchk13   51   1 Reply

sania24

Which of the given polymerization processes best describes the formation of polycarbonates?

Which of the given polymerization processes best describes the formation of polycarbonates?

[html]Question 1.Which of the choices are examples of step growth polymerization?

▸ cationic polymerization

▸ condensation polymerization

▸ anionic polymerization

▸ radical polymerization

▸ none of these

nrod1120   52   1 Reply

skdiveelis

Which of the choices are examples of chain growth polymerization?

Which of the choices are examples of chain growth polymerization?

[html]Question 1.What is not an example of a small molecule that is released in a condensation reaction?

▸ nitrogen gas

▸ water

▸ benzene

▸ carbon dioxideQuestion 2.Which of the choices ar

pattytcakes   49   1 Reply

isaw09

Identify the type of compound used to make safety goggles.

Identify the type of compound used to make safety goggles.

[html]Question 1.What monomers form Lexan?

▸ adipic acid and Bisphenol-A

▸ phosgene and Bisphenol-A

▸ terephthalic acid and 1,6-hexandiamine

▸ phosgene and 1,6-hexandiamine

▸ adipic acid and 1,6-hexandiamine

rsteel   43   1 Reply

LaceyCGibson