Question 1

Indicate which of the following common laboratory devices will deliver 25 mL of a solution with the greatest precision.

Accepted Answer

A) a 50 mL Erlenmeyer flask (without volume divisions) 
B) a 50 mL beaker (with volume divisions every 10 mL) 
C) a 50 mL graduated cylinder (with volume divisions every 2 mL) 
D) a 25 mL Erlenmeyer flask (without volume divisions) 
E) a 25 mL volumetric pipette (with a to-deliver error of 0.01 mL at 25   
C)  
A) a 50 mL Erlenmeyer flask (without volume divisions) 
B) a 50 mL beaker (with volume divisions every 10 mL) 
C) a 50 mL graduated cylinder (with volume divisions every 2 mL) 
D) a 25 mL Erlenmeyer flask (without volume divisions) 
E) a 25 mL volumetric pipette (with a to-deliver error of 0.01 mL at 25   
C)

Question 2

Aroldis Chapman is an MLB relief pitcher who recorded the fastest pitch in a major league game, which was clocked at 105 mi per hour. What was this speed in m/s? (1 mi   1.609 km)

Accepted Answer

A) 4.69   10-2 m/s 
B) 14.3 m/s 
C) 46.9 m/s 
D) 2.82   102 m/s 
E) 6.08   102 m/s 
A) 4.69   10-2 m/s 
B) 14.3 m/s 
C) 46.9 m/s 
D) 2.82   102 m/s 
E) 6.08   102 m/s

Question 3

Which one of the following is not equal to exactly one cubic meter (1 m3)?

Accepted Answer

A) 106 cm3 
B) 103 L 
C) 109 mm3 
D) 106 mL 
E) 100 dm3 
A) 106 cm3 
B) 103 L 
C) 109 mm3 
D) 106 mL 
E) 100 dm3

Question 4

Which of the following quantities has two significant figures?

Accepted Answer

A) 0.4 
B) 101 
C) 1.10   103 
D) 0.0092 
E) 0.520 
A) 0.4 
B) 101 
C) 1.10   103 
D) 0.0092 
E) 0.520

Question 5

Table sugar (sucrose) with the formula C12H22O11 is ________
I. an element.
II. a compound.
III. a mixture.

Accepted Answer

A) Only I 
B) Only II 
C) Only III 
D) Both I and III 
E) Both II and III 
A) Only I 
B) Only II 
C) Only III 
D) Both I and III 
E) Both II and III

Question 6

The following representation of ammonia is a ________

Accepted Answer

A) space-filling model. 
B) structural formula. 
C) chemical formula. 
D) ball-and-stick model. 
E) Newman projection. 
A) space-filling model. 
B) structural formula. 
C) chemical formula. 
D) ball-and-stick model. 
E) Newman projection.

Question 7

To bake a cake, it requires 16 teaspoons of vegetable oil. How many fluid ounces is that? (1 cup   48 teaspoons and 1 cup   8 fl oz)

Accepted Answer

A) 2.7 fl oz 
B) 96 fl oz 
C) 4.1   10-2 fl oz 
D) 0.38 fl oz 
E) 24 fl oz 
A) 2.7 fl oz 
B) 96 fl oz 
C) 4.1   10-2 fl oz 
D) 0.38 fl oz 
E) 24 fl oz

Question 8

Cheetahs can run at speeds of up to 60 mi per hour. How many seconds does it take a cheetah to run 10 m at this speed? (1 mi  .609 km)

Accepted Answer

A) 0.37 s 
B) 0.10 s 
C) 56 s 
D) 18 s 
E) 0.43 s 
A) 0.37 s 
B) 0.10 s 
C) 56 s 
D) 18 s 
E) 0.43 s

Question 9

Which one of the following is not a physical property?

Accepted Answer

A) flammability 
B) electrical conductivity 
C) color 
D) density 
E) boiling point 
A) flammability 
B) electrical conductivity 
C) color 
D) density 
E) boiling point

Question 10

During winter in Siberia, a tenant in a high-rise apartment building dumped a liter of steam (gaseous water) from a container off his balcony. Before it reached the ground, solid snow formed without observation of liquid water. The phase transition described by this process is called ________

Accepted Answer

A) melting. 
B) condensation. 
C) deposition. 
D) freezing. 
E) sublimation. 
A) melting. 
B) condensation. 
C) deposition. 
D) freezing. 
E) sublimation.

Question 11

What change of state is represented by the following diagram?

Accepted Answer

A) freezing 
B) sublimation 
C) vaporization 
D) condensation 
E) melting 
A) freezing 
B) sublimation 
C) vaporization 
D) condensation 
E) melting

Question 12

On a summer day, the temperature in Phoenix, Arizona, was recorded as 110   F. What is this temperature in   C?

Accepted Answer

A) 43   C 
B) 78   C 
C) 166   C 
D) 93   C 
E) 29   C 
A) 43   C 
B) 78   C 
C) 166   C 
D) 93   C 
E) 29   C

Question 13

Electromagnetic radiation in the mid-infrared region of the spectrum has wavelengths around 0.6 $\mu$m. Express this wavelength in meters using exponential notation (1   m   10-6 m).

Accepted Answer

A) 1.06   10-6 m 
B) 1.06   10-5 m 
C) 1.06 m 
D) 1.06   107 m 
E) 1.06   105 m 
A) 1.06   10-6 m 
B) 1.06   10-5 m 
C) 1.06 m 
D) 1.06   107 m 
E) 1.06   105 m

Question 14

The prefix nano corresponds to a factor of ________

Accepted Answer

A) 109. 
B) 103. 
C) 10-3. 
D) 10-6. 
E) 10-9. 
A) 109. 
B) 103. 
C) 10-3. 
D) 10-6. 
E) 10-9.

Question 15

The measurement 54.40 m contains ________ significant figure(s).

Accepted Answer

A) one 
B) two 
C) three 
D) four 
E) five 
A) one 
B) two 
C) three 
D) four 
E) five

Question 16

A solid directly forming a vapor or gas is called ________

Accepted Answer

A) sublimation. 
B) deposition. 
C) melting. 
D) freezing. 
E) vaporization. 
A) sublimation. 
B) deposition. 
C) melting. 
D) freezing. 
E) vaporization.

Question 17

A burette (shown below) was used to add dilute hydrochloric acid (HCl) to a solution containing sodium hydroxide (NaOH). If the burette initially was read as 0.00 mL, how much HCl has been delivered according to the reading in the figure?

Accepted Answer

A) 5.4 mL 
B) 5.40 mL 
C) 4.60 mL 
D) 4.3 mL 
E) 4.30 mL 
A) 5.4 mL 
B) 5.40 mL 
C) 4.60 mL 
D) 4.3 mL 
E) 4.30 mL

Question 18

Which of the following statements correctly describes the properties of a liquid?

Accepted Answer

A) A liquid does not have a definite shape. 
B) A liquid occupies the entire volume of its container. 
C) A liquid is highly compressible. 
D) A liquid contains molecules that are separated from one another by large distances. 
E) A liquid is highly ordered, such that molecules remain rigidly in place. 
A) A liquid does not have a definite shape. 
B) A liquid occupies the entire volume of its container. 
C) A liquid is highly compressible. 
D) A liquid contains molecules that are separated from one another by large distances. 
E) A liquid is highly ordered, such that molecules remain rigidly in place.

Question 19

Which of the following is a pure substance?

Accepted Answer

A) mineral water 
B) blood 
C) brass (an alloy of copper and zinc) 
D) sucrose (table sugar) 
E) beer 
A) mineral water 
B) blood 
C) brass (an alloy of copper and zinc) 
D) sucrose (table sugar) 
E) beer

Question 20

Which statement A-D about accuracy and precision is not correct?

Accepted Answer

A) Precision refers to the reproducibility of repeated measurements. 
B) Accuracy refers to how close a measured value is to the true value. 
C) It is possible for measurements to be precise but not accurate. 
D) Accuracy is determined by comparison with some standard. 
E) Statements A-D all are correct. 
A) Precision refers to the reproducibility of repeated measurements. 
B) Accuracy refers to how close a measured value is to the true value. 
C) It is possible for measurements to be precise but not accurate. 
D) Accuracy is determined by comparison with some standard. 
E) Statements A-D all are correct.

Exam 1: Matter and Energy: The Origin of the Universe

Indicate which of the following common laboratory devices will deliver 25 mL of a solution with the greatest precision.

Aroldis Chapman is an MLB relief pitcher who recorded the fastest pitch in a major league game, which was clocked at 105 mi per hour. What was this speed in m/s? (1 mi 1.609 km)

Which one of the following is not equal to exactly one cubic meter (1 m3)?

Which of the following quantities has two significant figures?

Table sugar (sucrose) with the formula C12H22O11 is ________ I. an element. II. a compound. III. a mixture.

The following representation of ammonia is a ________

To bake a cake, it requires 16 teaspoons of vegetable oil. How many fluid ounces is that? (1 cup 48 teaspoons and 1 cup 8 fl oz)

Cheetahs can run at speeds of up to 60 mi per hour. How many seconds does it take a cheetah to run 10 m at this speed? (1 mi 1.609 km)

Which one of the following is not a physical property?

During winter in Siberia, a tenant in a high-rise apartment building dumped a liter of steam (gaseous water) from a container off his balcony. Before it reached the ground, solid snow formed without observation of liquid water. The phase transition described by this process is called ________

What change of state is represented by the following diagram?

On a summer day, the temperature in Phoenix, Arizona, was recorded as 110 F. What is this temperature in C?

Electromagnetic radiation in the mid-infrared region of the spectrum has wavelengths around 0.6 μ\muμ m. Express this wavelength in meters using exponential notation (1 m 10-6 m).

The prefix nano corresponds to a factor of ________

The measurement 54.40 m contains ________ significant figure(s).

A solid directly forming a vapor or gas is called ________

A burette (shown below) was used to add dilute hydrochloric acid (HCl) to a solution containing sodium hydroxide (NaOH). If the burette initially was read as 0.00 mL, how much HCl has been delivered according to the reading in the figure?

Which of the following statements correctly describes the properties of a liquid?

Which of the following is a pure substance?

Which statement A-D about accuracy and precision is not correct?

Atoms, Ions, and Molecules: Matter Starts Here

Stoichiometry: Mass, Formulas, and Reactions

Solution Chemistry: The Hydrosphere

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

Which one of the following is not equal to exactly one cubic meter (1 m³)?

Table sugar (sucrose) with the formula C₁₂H₂₂O₁₁ is ________ I. an element. II. a compound. III. a mixture.