Question 1

Formic acid has a pKa of 3.8.Calculate the pH of a solution if [Formic acid] = 0.020 M and [Formate] = 0.040 M.

Accepted Answer

A) pH = 3.5 
B) pH = 3.8 
C) pH = 4.1 
D) pH = 4.4 
A) pH = 3.5 
B) pH = 3.8 
C) pH = 4.1 
D) pH = 4.4

Question 2

The family of compounds known as steroids share a common molecular framework of 17 carbon atoms that are arranged into four rings.Which is a representation of this common molecular framework?

Accepted Answer

A)    
B)    
C)    
D)    
A)    
B)    
C)    
D)

Question 3

If the reaction quotient,Q,is less than the equilibrium constant,Keq,the reaction will

Accepted Answer

A) continue both forward and reverse reactions to keep the ratio of reactants and products the same. 
B) continue the forward reaction to convert reactants into products. 
C) continue the reverse reaction to convert products into reactants. 
D) halt all reactions. 
A) continue both forward and reverse reactions to keep the ratio of reactants and products the same. 
B) continue the forward reaction to convert reactants into products. 
C) continue the reverse reaction to convert products into reactants. 
D) halt all reactions.

Question 4

What functional groups are common to both of structures below?

Accepted Answer

A) Acid 
B) Alcohol 
C) Amide 
D) Amine 
A) Acid 
B) Alcohol 
C) Amide 
D) Amine

Question 5

The father of modern medicine,Hippocrates,described making a tea that was effective against fever by boiling willow bark.Years later,the active ingredient was isolated and chemically modified to produce the drug we now know as

Accepted Answer

A) acetaminophen. 
B) aspirin. 
C) ibuprofen. 
D) penicillin. 
A) acetaminophen. 
B) aspirin. 
C) ibuprofen. 
D) penicillin.

Question 6

For linear n-hexane,C6H14,which molecular representation is correct?

Accepted Answer

A)    
B)    
C)    
D)    
A)    
B)    
C)    
D)

Question 7

Isopentyl acetate (shown here) is used as a flavoring agent in food.Its fragrance is that of bananas.What functional group(s) is(are) present in this compound?

Accepted Answer

A) Ester only 
B) Ketone only 
C) Ketone and ether 
D) Ester,ether,and ketone 
A) Ester only 
B) Ketone only 
C) Ketone and ether 
D) Ester,ether,and ketone

Formic acid has a pKa of 3.8.Calculate the pH of a solution if [Formic acid] = 0.020 M and [Formate] = 0.040 M.

The family of compounds known as steroids share a common molecular framework of 17 carbon atoms that are arranged into four rings.Which is a representation of this common molecular framework?

If the reaction quotient,Q,is less than the equilibrium constant,K_eq,the reaction will

What functional groups are common to both of structures below?

The father of modern medicine,Hippocrates,described making a tea that was effective against fever by boiling willow bark.Years later,the active ingredient was isolated and chemically modified to produce the drug we now know as

For linear n-hexane,C₆H₁₄,which molecular representation is correct?

Isopentyl acetate (shown here) is used as a flavoring agent in food.Its fragrance is that of bananas.What functional group(s) is(are) present in this compound?

Portable Electronics: the Periodic Table in the Palm of Your Hand

The Air We Breathe

Radiation From the Sun

Climate Change

Energy From Combustion

Energy From Alternative Sources

Energy Storage

Water Everywhere: A Most Precious Resource

The World of Polymers and Plastics

Brewing and Chewing

Nutrition

Genes and Life

Who Killed Drthompson a Forensic Mystery

Filters

Exam 12: Health Medicine

Formic acid has a pKa of 3.8.Calculate the pH of a solution if [Formic acid] = 0.020 M and [Formate] = 0.040 M.

The family of compounds known as steroids share a common molecular framework of 17 carbon atoms that are arranged into four rings.Which is a representation of this common molecular framework?

If the reaction quotient,Q,is less than the equilibrium constant,Keq,the reaction will

What functional groups are common to both of structures below?

The father of modern medicine,Hippocrates,described making a tea that was effective against fever by boiling willow bark.Years later,the active ingredient was isolated and chemically modified to produce the drug we now know as

For linear n-hexane,C6H14,which molecular representation is correct?

Isopentyl acetate (shown here) is used as a flavoring agent in food.Its fragrance is that of bananas.What functional group(s) is(are) present in this compound?

Portable Electronics: the Periodic Table in the Palm of Your Hand

The Air We Breathe

Radiation From the Sun

Climate Change

Energy From Combustion

Energy From Alternative Sources

Energy Storage

Water Everywhere: A Most Precious Resource

The World of Polymers and Plastics

Brewing and Chewing

Nutrition

Genes and Life

Who Killed Drthompson a Forensic Mystery

Filters

If the reaction quotient,Q,is less than the equilibrium constant,K_eq,the reaction will

For linear n-hexane,C₆H₁₄,which molecular representation is correct?