Question 1

How many moles of ammonium hydroxide are present in 100 mL of a 0.17 M solution?

Accepted Answer

A) 1.7      moles 
B) 5.8      moles 
C) 1.7 moles 
D) 1.7      moles 
E) 17 moles 
A) 1.7      moles 
B) 5.8      moles 
C) 1.7 moles 
D) 1.7      moles 
E) 17 moles

Question 2

Which picture best represents an atomic-level view of a nonelectrolyte solution (water molecules not shown)?

Accepted Answer

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

Question 3

How many liters of 0.200 M NaOH solution are required to completely react with 1.00 L of 0.100 M HCN solution to produce sodium cyanide and water?

Accepted Answer

A) 0.25 L 
B) 0.50 L 
C) 1.00 L 
D) 1.50 L 
E) 2.00 L 
A) 0.25 L 
B) 0.50 L 
C) 1.00 L 
D) 1.50 L 
E) 2.00 L

Question 4

Hard water contains Mg2+ and Ca2+ ions and tends to form a ring in a bathtub due to its reaction with the soluble anions in soap. The formation of this insoluble material is an example of ________

Accepted Answer

A) an acid-base reaction. 
B) a precipitation reaction. 
C) a redox reaction. 
D) a bathochromic shift. 
E) bad housekeeping. 
A) an acid-base reaction. 
B) a precipitation reaction. 
C) a redox reaction. 
D) a bathochromic shift. 
E) bad housekeeping.

Question 5

The amount of blood in the human body is around 5.0 L, and this amount of blood contains about 0.88 g of potassium ions. What is the concentration of potassium ions in blood?

Accepted Answer

A) 0.88 mM 
B) 0.18 mM 
C) 23 mM 
D) 4.5 mM 
E) 2.3 mM 
A) 0.88 mM 
B) 0.18 mM 
C) 23 mM 
D) 4.5 mM 
E) 2.3 mM

Question 6

In which one of the following compounds is the oxidation number of phosphorus equal to +5?

Accepted Answer

A) PH3 
B) P4S6 
C) PO33- 
D) P2O5 
E) P4 
A) PH3 
B) P4S6 
C) PO33- 
D) P2O5 
E) P4

Question 7

Identify the species that is oxidized and reduced in the following oxidation-reduction reaction.
Fe2O3(s)   3CO(g)   2Fe(s)   +3CO2(g)

Accepted Answer

Oxidized:

Question 8

In the following reaction, H2O ________ CH3COOH(aq)   H2O(l)   CH3COO-(aq)   H3O+(aq)

Accepted Answer

A) acts as an acid. 
B) acts as a base. 
C) acts neither as an acid nor as a base. 
D) serves as both an acid and as a base. 
E) causes a precipitate to form. 
A) acts as an acid. 
B) acts as a base. 
C) acts neither as an acid nor as a base. 
D) serves as both an acid and as a base. 
E) causes a precipitate to form.

How many moles of ammonium hydroxide are present in 100 mL of a 0.17 M solution?

Which picture best represents an atomic-level view of a nonelectrolyte solution (water molecules not shown)?

How many liters of 0.200 M NaOH solution are required to completely react with 1.00 L of 0.100 M HCN solution to produce sodium cyanide and water?

Hard water contains Mg²⁺ and Ca²⁺ ions and tends to form a ring in a bathtub due to its reaction with the soluble anions in soap. The formation of this insoluble material is an example of ________

The amount of blood in the human body is around 5.0 L, and this amount of blood contains about 0.88 g of potassium ions. What is the concentration of potassium ions in blood?

In which one of the following compounds is the oxidation number of phosphorus equal to +5?

Identify the species that is oxidized and reduced in the following oxidation-reduction reaction. Fe₂O₃(s) 3CO(g) 2Fe(s) +3CO₂(g)

In the following reaction, H₂O ________ CH₃COOH(aq) H₂O(l) CH₃COO^-(aq) H₃O⁺(aq)

Matter and Energy: The Origin of the Universe

Atoms, Ions, and Molecules: Matter Starts Here

Stoichiometry: Mass, Formulas, and Reactions

Thermochemistry: Energy Changes in Reactions

Properties of Gases: The Air We Breathe

A Quantum Model of Atoms: Waves and Particles

Chemical Bonds: What Makes a Gas a Greenhouse Gas

Molecular Geometry: Shape Determines Function

Intermolecular Forces: The Uniqueness of Water

Solutions: Properties and Behavior

Solids: Crystals, Alloys, and Polymers

Chemical Kinetics: Reactions in the Atmosphere

Chemical Equilibrium: How Much Product Does a Reaction Really Make

Acidbase Equilibria: Proton Transfer in Biological Systems

Additional Aqueous Equilibria: Chemistry and the Oceans

Thermodynamics: Spontaneous and Nonspontaneous Reactions and Processes

Electrochemistry: The Quest for Clean Energy

Nuclear Chemistry: Applications to Energy and Medicine

Organic and Biological Molecules: the Compounds of Life

The Main Group Elements: Life and the Periodic Table

Transition Metals: Biological and Medical Applications

Filters

Exam 4: Solution Chemistry: The Hydrosphere

How many moles of ammonium hydroxide are present in 100 mL of a 0.17 M solution?

Which picture best represents an atomic-level view of a nonelectrolyte solution (water molecules not shown)?

How many liters of 0.200 M NaOH solution are required to completely react with 1.00 L of 0.100 M HCN solution to produce sodium cyanide and water?

Hard water contains Mg2+ and Ca2+ ions and tends to form a ring in a bathtub due to its reaction with the soluble anions in soap. The formation of this insoluble material is an example of ________

The amount of blood in the human body is around 5.0 L, and this amount of blood contains about 0.88 g of potassium ions. What is the concentration of potassium ions in blood?

In which one of the following compounds is the oxidation number of phosphorus equal to +5?

Identify the species that is oxidized and reduced in the following oxidation-reduction reaction. Fe2O3(s) 3CO(g) 2Fe(s) +3CO2(g)

In the following reaction, H2O ________ CH3COOH(aq) H2O(l) CH3COO-(aq) H3O+(aq)

Matter and Energy: The Origin of the Universe

Atoms, Ions, and Molecules: Matter Starts Here

Stoichiometry: Mass, Formulas, and Reactions

Thermochemistry: Energy Changes in Reactions

Properties of Gases: The Air We Breathe

A Quantum Model of Atoms: Waves and Particles

Chemical Bonds: What Makes a Gas a Greenhouse Gas

Molecular Geometry: Shape Determines Function

Intermolecular Forces: The Uniqueness of Water

Solutions: Properties and Behavior

Solids: Crystals, Alloys, and Polymers

Chemical Kinetics: Reactions in the Atmosphere

Chemical Equilibrium: How Much Product Does a Reaction Really Make

Acidbase Equilibria: Proton Transfer in Biological Systems

Additional Aqueous Equilibria: Chemistry and the Oceans

Thermodynamics: Spontaneous and Nonspontaneous Reactions and Processes

Electrochemistry: The Quest for Clean Energy

Nuclear Chemistry: Applications to Energy and Medicine

Organic and Biological Molecules: the Compounds of Life

The Main Group Elements: Life and the Periodic Table

Transition Metals: Biological and Medical Applications

Filters

Hard water contains Mg²⁺ and Ca²⁺ ions and tends to form a ring in a bathtub due to its reaction with the soluble anions in soap. The formation of this insoluble material is an example of ________

Identify the species that is oxidized and reduced in the following oxidation-reduction reaction. Fe₂O₃(s) 3CO(g) 2Fe(s) +3CO₂(g)

In the following reaction, H₂O ________ CH₃COOH(aq) H₂O(l) CH₃COO^-(aq) H₃O⁺(aq)