Question 1

How many liters are in 15.1 fluid ounces of a soft drink? (1 fl oz = 28.35 mL)

Accepted Answer

A) 5 × 10-4 L 
B) 5 × 102 L 
C) 4 × 105 L 
D) 4 × 102 L 
E) 0.428 L 
A) 5 × 10-4 L 
B) 5 × 102 L 
C) 4 × 105 L 
D) 4 × 102 L 
E) 0.428 L

Question 2

The property of a series of repeated measurements that is most directly related to precision is

Accepted Answer

A) the number of place holders in each measurement. 
B) the reproducibility of each measurement. 
C) the exactness of each measurement. 
D) the accuracy of each measurement. 
E) the number of significant figures in each measurement. 
A) the number of place holders in each measurement. 
B) the reproducibility of each measurement. 
C) the exactness of each measurement. 
D) the accuracy of each measurement. 
E) the number of significant figures in each measurement.

Question 3

Calculate the mass of aluminum that occupies the same volume as 95.7 g of cobalt.The density of cobalt is 8.90 g/cm3 and the density of aluminum is 2.71 g/cm3.

Accepted Answer

A) 0.252 g 
B) 29.1 g 
C) 2 × 103 g 
D) 0.00318 g 
E) 3.96 g 
A) 0.252 g 
B) 29.1 g 
C) 2 × 103 g 
D) 0.00318 g 
E) 3.96 g

Question 4

How many feet (ft)are contained in 0.496 km,given that 1 mi = 1.609 km and 5280 ft = 1 mi (exact).

Accepted Answer

A) 1620.000 ft 
B)    ft 
C)    ft 
D) 4218.700 ft 
E)    ft 
A) 1620.000 ft 
B)    ft 
C)    ft 
D) 4218.700 ft 
E)    ft

Question 5

The number of significant figures in 0.090900 × 10-4 is

Accepted Answer

A) 6. 
B) 4. 
C) 3. 
D) 7. 
E) 5. 
A) 6. 
B) 4. 
C) 3. 
D) 7. 
E) 5.

Question 6

How many joules are there in 1.86 kcal? (1 calorie = 4.184 J)

Accepted Answer

A) 8 × 10-3 J 
B) 8 × 103 J 
C) 7.780 J 
D) 4 × 102 J 
E) 0.444 J 
A) 8 × 10-3 J 
B) 8 × 103 J 
C) 7.780 J 
D) 4 × 102 J 
E) 0.444 J

Question 7

How many significant figures are there in the value 0.0227 nm?

Accepted Answer

A) 4 
B) 3 
C) 2 
D) 5 
E) 6 
A) 4 
B) 3 
C) 2 
D) 5 
E) 6

Question 8

Which of the following sets of units is not in the order of increasing size?

Accepted Answer

A) cPa < dPa < kPa 
B) μL < dL < L 
C) ns < ms < s 
D) pm < mm < nm 
E) μg < mg < cg 
A) cPa < dPa < kPa 
B) μL < dL < L 
C) ns < ms < s 
D) pm < mm < nm 
E) μg < mg < cg

Question 9

The best answer to report for 352.94 - 36.0342 is _____.

Accepted Answer

A) 317 
B) 316.9058 
C) 316.906 
D) 316.9 
E) 316.91 
A) 317 
B) 316.9058 
C) 316.906 
D) 316.9 
E) 316.91

Question 10

The melting point of a solid is 41°F.This corresponds to

Accepted Answer

A) 296 K. 
B) 314 K. 
C) 289 K. 
D) 278 K. 
A) 296 K. 
B) 314 K. 
C) 289 K. 
D) 278 K.

Question 11

Which of the following statements concerning experiment and explanation is/are true?
1)A law is always given in the form of a mathematical expression.
2)Once a hypothesis passes one or two tests it is considered a theory.
3)Observation is a key component of the scientific method.

Accepted Answer

A) 1 only 
B) 2 only 
C) 3 only 
D) 1 and 2 
E) 1,2,and 3 
A) 1 only 
B) 2 only 
C) 3 only 
D) 1 and 2 
E) 1,2,and 3

Question 12

Which of the following is an example of a chemical change?

Accepted Answer

A) silver tarnishing 
B) iodine sublimating 
C) alcohol boiling 
D) sucrose dissolving 
E) sodium chloride melting 
A) silver tarnishing 
B) iodine sublimating 
C) alcohol boiling 
D) sucrose dissolving 
E) sodium chloride melting

Question 13

The specific heat is the amount of heat required to raise the temperature of one gram of a substance one degree Celsius.A 75.0-g sample of an unknown substance absorbed 2.93 kJ of energy as it changed from a temperature of 23.2°C to 95.4°C.What is the specific heat of the unknown substance?

Accepted Answer

A) 541 kJ/(g ⋅°
C)  
B) 0.541 J/(g ⋅°
C)  
C) 5.41 kJ/(g ⋅°
C)  
D) 54.1 kJ/(g ⋅°
C)  
E) 0.541 kJ/(g ⋅°
C)  
A) 541 kJ/(g ⋅°
C)  
B) 0.541 J/(g ⋅°
C)  
C) 5.41 kJ/(g ⋅°
C)  
D) 54.1 kJ/(g ⋅°
C)  
E) 0.541 kJ/(g ⋅°
C)

Question 14

Express the result of the following calculation in scientific notation: 0.0557 cm2 ÷ 98.4 cm

Accepted Answer

A) 6 × 105 cm 
B) 6 × 104 cm 
C) 6 × 10-3 cm 
D) 6 × 10-4 cm 
E) 6 × 103 cm 
A) 6 × 105 cm 
B) 6 × 104 cm 
C) 6 × 10-3 cm 
D) 6 × 10-4 cm 
E) 6 × 103 cm

Question 15

A solution is a

Accepted Answer

A) pure element. 
B) pure mixture. 
C) heterogeneous mixture. 
D) homogeneous mixture. 
E) pure compound. 
A) pure element. 
B) pure mixture. 
C) heterogeneous mixture. 
D) homogeneous mixture. 
E) pure compound.

Question 16

A particular liquid boils at -260°F.What is its boiling point on the Kelvin scale?

Accepted Answer

A) 146 K 
B) 129 K 
C) 111 K 
D) 161 K 
E) 229 K 
A) 146 K 
B) 129 K 
C) 111 K 
D) 161 K 
E) 229 K

Question 17

How many significant figures should be reported for the difference between 235.9237 mL and 235.57 mL?

Accepted Answer

A) 7 
B) 1 
C) 2 
D) 3 
E) 5 
A) 7 
B) 1 
C) 2 
D) 3 
E) 5

Question 18

All of the following are homogeneous mixtures except

Accepted Answer

A) sodium chloride and potassium chloride. 
B) hydrogen gas and chlorine gas. 
C) sodium chloride and potassium chloride solution. 
D) mercury-zinc solution. 
E) hydrochloric acid solution. 
A) sodium chloride and potassium chloride. 
B) hydrogen gas and chlorine gas. 
C) sodium chloride and potassium chloride solution. 
D) mercury-zinc solution. 
E) hydrochloric acid solution.

Question 19

What volume of a pure liquid (density 0.860 g/mL)has a mass of 0.360 kg?

Accepted Answer

A) 4.19 × 102 mL 
B) 2.39 × 10-3 mL 
C) 3.10 × 10-1 mL 
D) 2.380 mL 
E) 4.19 × 10-1 mL 
A) 4.19 × 102 mL 
B) 2.39 × 10-3 mL 
C) 3.10 × 10-1 mL 
D) 2.380 mL 
E) 4.19 × 10-1 mL

Question 20

How many significant figures are there in the number 8.100?

Accepted Answer

A) 1 
B) 5 
C) 3 
D) 4 
E) 2 
A) 1 
B) 5 
C) 3 
D) 4 
E) 2

Exam 1: Chemistry and Measurement

How many liters are in 15.1 fluid ounces of a soft drink? (1 fl oz = 28.35 mL)

The property of a series of repeated measurements that is most directly related to precision is

Calculate the mass of aluminum that occupies the same volume as 95.7 g of cobalt.The density of cobalt is 8.90 g/cm3 and the density of aluminum is 2.71 g/cm3.

How many feet (ft)are contained in 0.496 km,given that 1 mi = 1.609 km and 5280 ft = 1 mi (exact).

The number of significant figures in 0.090900 × 10-4 is

How many joules are there in 1.86 kcal? (1 calorie = 4.184 J)

How many significant figures are there in the value 0.0227 nm?

Which of the following sets of units is not in the order of increasing size?

The best answer to report for 352.94 - 36.0342 is _____.

The melting point of a solid is 41°F.This corresponds to

Which of the following statements concerning experiment and explanation is/are true? 1)A law is always given in the form of a mathematical expression. 2)Once a hypothesis passes one or two tests it is considered a theory. 3)Observation is a key component of the scientific method.

Which of the following is an example of a chemical change?

The specific heat is the amount of heat required to raise the temperature of one gram of a substance one degree Celsius.A 75.0-g sample of an unknown substance absorbed 2.93 kJ of energy as it changed from a temperature of 23.2°C to 95.4°C.What is the specific heat of the unknown substance?

Express the result of the following calculation in scientific notation: 0.0557 cm2 ÷ 98.4 cm

A solution is a

A particular liquid boils at -260°F.What is its boiling point on the Kelvin scale?

How many significant figures should be reported for the difference between 235.9237 mL and 235.57 mL?

All of the following are homogeneous mixtures except

What volume of a pure liquid (density 0.860 g/mL)has a mass of 0.360 kg?

How many significant figures are there in the number 8.100?

Atoms, molecules, and Ions

Calculations With Chemical Formulas and Equations

Chemical Reactions

The Gaseous State

Thermochemistry

Quantum Theory of the Atom

Electron Configurations and Periodicity

Ionic and Covalent Bonding

Molecular Geometry and Chemical Bonding Theory

States of Matter; Liquids and Solids

Solutions

Rates of Reaction

Chemical Equilibrium

Acids and Bases

Acid-Base Equilibria

Solubility and Complex-Ion Equilibria

Thermodynamics and Equilibrium

Electrochemistry

Nuclear Chemistry

Chemistry of the Main-Group Metals

The Transition Elements and Coordination Compounds

Organic Chemistry

Polymer Materials: Synthetic and Biological

Filters

Calculate the mass of aluminum that occupies the same volume as 95.7 g of cobalt.The density of cobalt is 8.90 g/cm³ and the density of aluminum is 2.71 g/cm³.

The number of significant figures in 0.090900 × 10^-4 is

Express the result of the following calculation in scientific notation: 0.0557 cm² ÷ 98.4 cm