Question 1

How do salinometers measure salinity?

Accepted Answer

A)  It measures the number of salt molecules in a set mass of seawater. 
B)  It calculates the salinity based on the density of the seawater. 
C)  It measures the electrical conductivity of seawater samples. 
D)  It calculates the salinity by measuring the chlorinity. 
A)  It measures the number of salt molecules in a set mass of seawater. 
B)  It calculates the salinity based on the density of the seawater. 
C)  It measures the electrical conductivity of seawater samples. 
D)  It calculates the salinity by measuring the chlorinity.

Question 2

What is a solute?

Accepted Answer

A)  A substance, usually a liquid, which dissolves other substances 
B)  A substance that dissolves into another substance 
C)  A mixture of two or more substances 
D)  A polar molecule 
A)  A substance, usually a liquid, which dissolves other substances 
B)  A substance that dissolves into another substance 
C)  A mixture of two or more substances 
D)  A polar molecule

Question 3

What is the general behavior of pH in seawater? What affect can pH levels at various depths?

Accepted Answer

Answer should include:
•	Seawater has an

Question 4

What is not true of a mixture?

Accepted Answer

A)  A mixture is different substances closely intermingled. 
B)  A mixture is able to maintain separate properties. 
C)  A mixture is able to disperse homogenously. 
D)  A mixture may have varying concentrations and properties throughout. 
A)  A mixture is different substances closely intermingled. 
B)  A mixture is able to maintain separate properties. 
C)  A mixture is able to disperse homogenously. 
D)  A mixture may have varying concentrations and properties throughout.

Question 5

Residence times are dependent upon steady-state conditions and a well-mixed ocean.

Accepted Answer

A) True 
 B)False

Question 6

What is the approximate mixing time of the ocean?

Accepted Answer

A)  160 years 
B)  1,600 years 
C)  16,000 years 
D) 1.6 million years 
A)  160 years 
B)  1,600 years 
C)  16,000 years 
D) 1.6 million years

Question 7

Marine animals are unable to break down water molecules to acquire oxygen, but marine plants can produce enough carbon dioxide to support its own metabolism.

Accepted Answer

A) True 
 B)False

Question 8

What is the Forchhammer's principle?

Accepted Answer

A)  The saturation level of seawater 
B)  The constant proportion of solids in seawater 
C)  The components of seawater from weathering surface rocks 
D)  The measure of the total mass of halogen ions 
A)  The saturation level of seawater 
B)  The constant proportion of solids in seawater 
C)  The components of seawater from weathering surface rocks 
D)  The measure of the total mass of halogen ions

Question 9

Rapid amounts of photosynthesis can create variations in the alkalinity of seawater.

Accepted Answer

A) True 
 B)False

Question 10

Pure water has four colligative properties associated with it.

Accepted Answer

A) True 
 B)False

How do salinometers measure salinity?

What is a solute?

What is the general behavior of pH in seawater? What affect can pH levels at various depths?

What is not true of a mixture?

Residence times are dependent upon steady-state conditions and a well-mixed ocean.

What is the approximate mixing time of the ocean?

Marine animals are unable to break down water molecules to acquire oxygen, but marine plants can produce enough carbon dioxide to support its own metabolism.

What is the Forchhammer's principle?

Rapid amounts of photosynthesis can create variations in the alkalinity of seawater.

Pure water has four colligative properties associated with it.

The Origin of the Ocean

A History of Marine Science

Earth Structure and Plate Tectonics

Ocean Basins

Ocean Sediments

Water and Ocean Structure

Circulation of the Atmosphere

Circulation of the Ocean

Waves

Tides

Coasts

Life in the Ocean

Plankton, Algae, and Plants

Marine Animals

Marine Communities

Marine Resources

The Ocean and The Environment

Filters

Exam 7: Ocean Chemistry

How do salinometers measure salinity?

What is a solute?

What is the general behavior of pH in seawater? What affect can pH levels at various depths?

What is not true of a mixture?

Residence times are dependent upon steady-state conditions and a well-mixed ocean.

What is the approximate mixing time of the ocean?

Marine animals are unable to break down water molecules to acquire oxygen, but marine plants can produce enough carbon dioxide to support its own metabolism.

What is the Forchhammer's principle?

Rapid amounts of photosynthesis can create variations in the alkalinity of seawater.

Pure water has four colligative properties associated with it.

The Origin of the Ocean

A History of Marine Science

Earth Structure and Plate Tectonics

Ocean Basins

Ocean Sediments

Water and Ocean Structure

Circulation of the Atmosphere

Circulation of the Ocean

Waves

Tides

Coasts

Life in the Ocean

Plankton, Algae, and Plants

Marine Animals

Marine Communities

Marine Resources

The Ocean and The Environment

Filters