This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Which statement is false? a. Hydrocarbons are hydrophobic. b. Hydrocarbons are less dense than ... (Read 160 times)

mrsjacobs44

  • Hero Member
  • *****
  • Posts: 500
on: Aug 23, 2018

Which statement is false?
  a. Hydrocarbons are hydrophobic.
  b. Hydrocarbons are less dense than water.
  c. Hydrocarbons with the same number of carbons have similar physical properties.
  d. Hydrocarbons have CC and CH dipoles that are significant.
  e. Hydrocarbons have relatively low melting points and low boiling points.



Question 2

Acetic acid can be protonated in a strong acid such as sulfuric acid. Predict which oxygen becomes
  protonated and explain why.


 

Question 3

Explain why acetic acid
 
  is a much stronger acid than ethanol.

Question 4

Using resonance structures, explain why aniline,
 
  is a weaker base than benzylamine
 

Question 5

okdp1x5Z+kUetYb9nQfg664ROiILkxJaouLopwbxYPYlrmNUTJR3EfIj39VMlE8/udYHuHDREBXQubJI5y9YYKTVx+8O9a/nfowhSpjkQSMBGSiMJKQU0lAEpAEJIEGCTTb8NgG9yY/lAQkAUlAEnjkCMhE8cidMhmwJCAJSAIPloBMFA+Wt9ybJCAJSAKPHAGZKB65UyYDlgQkAUngwRKQieLB8pZ7kwQkAUngkSPwX5Drq6XjgWoHAAAAAElFTkSuQmCC />"

Question 6

Complete this acid-base reaction and label the acid, base, conjugate base, and conjugate acid.
 

Question 7

Use the curved arrow method to show the electron movement and label the acid, base, conjugate acid,
  and conjugate base.


 

Question 8

Draw the conjugate acid of each species
 

Question 9

Given pKa = 15.7 for H2O and pKa = 3.2 for HF, identify the conjugate base of each of these acids and
  explain which conjugate base is stronger.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

InfiniteSteez

  • Sr. Member
  • ****
  • Posts: 340
Reply #1 on: Aug 23, 2018
Answer to Question 1

d

Answer to Question 2

Protonation occurs on the C = O oxygen because delocalization of the charge can occur readily:

No corresponding delocalization can occur if protonation takes place on the singly bonded oxygen

because that oxygen has three sigma bonds and a lone pair and cannot accept another bond.

Answer to Question 3

The C = O group in acetic acid has an inductive effect, withdrawing electrons. More important is the
resonance effect of delocalizing the negative charge in the conjugate base of acetic acid which cannot be
done for ethanol.



Answer to Question 4

Aniline is more stabilized by resonance than its conjugate acid, but benzylamine and its conjugate acid
are equally stabilized by resonance.



Answer to Question 5



Answer to Question 6



Answer to Question 7



Answer to Question 8



mrsjacobs44

  • Hero Member
  • *****
  • Posts: 500
Reply #2 on: Aug 23, 2018
TY


InfiniteSteez

  • Sr. Member
  • ****
  • Posts: 340
Reply #3 on: Aug 23, 2018
You're welcome


« previous next »
 

Did you know?

The use of salicylates dates back 2,500 years to Hippocrates’s recommendation of willow bark (from which a salicylate is derived) as an aid to the pains of childbirth. However, overdosage of salicylates can harm body fluids, electrolytes, the CNS, the GI tract, the ears, the lungs, the blood, the liver, and the kidneys and cause coma or death.

Did you know?

The average human gut is home to perhaps 500 to 1,000 different species of bacteria.

Did you know?

Though Candida and Aspergillus species are the most common fungal pathogens causing invasive fungal disease in the immunocompromised, infections due to previously uncommon hyaline and dematiaceous filamentous fungi are occurring more often today. Rare fungal infections, once accurately diagnosed, may require surgical debridement, immunotherapy, and newer antifungals used singly or in combination with older antifungals, on a case-by-case basis.

Did you know?

Women are two-thirds more likely than men to develop irritable bowel syndrome. This may be attributable to hormonal changes related to their menstrual cycles.

Did you know?

By definition, when a medication is administered intravenously, its bioavailability is 100%.

Titan's dense atmosphere shrouds the moon beneath a tan haze in this image. Titan's dense atmosphere shrouds the moon beneath a tan haze in this image.
Schematic depiction of the hydrophobic effect Schematic depiction of the hydrophobic effect
Early in the twentieth century, when malnutrition was common, companies such as this one advertised Early in the twentieth century, when malnutrition was common, companies such as this one advertised
Example of Reconciling a Bank Statement Example of Reconciling a Bank Statement
Hydrocarbons Hydrocarbons
Nutrient-Dense Food Choices Nutrient-dense foods provide more nutrition per calorie and fewer solid Nutrient-Dense Food Choices Nutrient-dense foods provide more nutrition per calorie and fewer solid
Video: Calvin cycle (The light-independent reactions )

For a complete list of videos, visit our video library