Deck 1: Chemical Tools: Experimentation and Measurement

Question 1

The mass of a proton is 1.67 × 10^-27 kg.What is the mass of a proton in Gigagrams?

A)1.67 × 10^-39 Gg
B)1.67 × 10^-36 Gg
C)1.67 × 10^-33 Gg
D)1.67 × 10^-30 Gg

Answer 1

1.67 × 10^-33 Gg

Question 2

The number of cm in 1.0 in is closest to

A)1.0.
B)1.5.
C)2.0.
D)2.5.

Answer 2

2.5.

Question 3

What is the coldest temperature possible?

A)0°C
B)0°F
C)0 K
D)None of these

Answer 3

0 K

Question 4

What symbol is used to represent the factor 10^-3?

A)M
B)m
C)μ
D)n

Question 5

When measuring a solid metal block at constant temperature,which measurement will change in numerical value depending on the location where it is taken?

A)length
B)mass
C)volume
D)weight

Question 6

The thickness of a U.S.dime is approximately one

A)m.
B)cm.
C)mm.
D)μm.

Question 7

The diameter of the nucleus of an atom is approximately 1 × 10^-15 meters.If 1 nm is equal to 10 what is the diameter of the nucleus in

A)1 × 10^-23 Å
B)1 × 10^-8 Å
C)1 × 10^-7 Å
D)1 × 10^-5 Å

Question 8

Which of the following is an example of a qualitative measurement?

A)blue crystal
B)10 g of salt
C)2 moles of carbon atoms
D)12 dL of water

Question 9

One gram is approximately the same as half the mass of a new U.S.

A)penny.
B)dime.
C)quarter.
D)dollar.

Question 10

An astronaut uses a laboratory balance and weighs an object on earth and again on the moon.Which statement below about the weight and mass of the object is true?

A)The mass and weight will be identical on the earth and the moon.
B)The mass will be the same on earth and moon but the weight will be less on the moon.
C)The weight will be the same on earth and moon but the mass will be less on the moon.
D)Both the mass and weight will be different on earth and moon.

Question 11

Without using a calculator,solve the following problem:

A)1 × 10^-6
B)1 × 10⁴
C)1 × 10²⁴
D)1 × 10³⁴

Question 12

The factor 0.01 corresponds to which prefix?

A)deka
B)deci
C)centi
D)milli

Question 13

One kilogram is slightly more than ________ U.S.pounds.

A)0.5
B)1
C)2
D)5

Question 14

A consistent explanation of known observations is called

A)an experiment.
B)a hypothesis.
C)a prediction.
D)a theory.

Question 15

The factor 10^-2 corresponds to which prefix?

A)deka
B)deci
C)centi
D)milli

Question 16

An interpretation of the results of many tests is called

A)an experiment.
B)a hypothesis.
C)a prediction.
D)a theory.

Question 17

Without using a calculator,solve the following problem:

A)1 × 10⁰
B)1 × 10^-3
C)1 × 10^-9
D)1 × 10^-12

Question 18

A sailor circumnavigated the earth and covered 4,264,000 meters.Express this number in standard scientific notation.

A)4.264 × 10^-7 m
B)4.264 × 10^-6 m
C)4.264 × 10⁶ m
D)4.264 × 10⁷ m

Question 19

What symbol is used to express the factor,10^-6?

A)M
B)m
C)μ
D)n

Question 20

The diameter of an atom is approximately 1 × 10^-10 m.What is the diameter in millimeters?

A)1 × 10^-16 mm
B)1 × 10^-13 mm
C)1 × 10^-7 mm
D)1 × 10^-4 mm

Question 21

The average mass of an oxygen atom is 5.3 × 10^-26 kg.Calculate the kinetic energy of a mole of oxygen atoms,all moving at a speed of 400 m/s (1000 mph).

A)8.2 × 10^-21 J
B)2600 J
C)5200 J
D)13,000 J

Question 22

Which has the least kinetic energy?

A)a 1200 kg object moving at 90 km/hr
B)a 1400 kg object moving at 85 km/hr
C)a 1600 kg object moving at 80 km/hr
D)a 1800 kg object moving at 75 km/hr

Question 23

A gold ingot weighs 5.50 lbs.If the density of gold is 19.31 g/cm³,and the length and width of the ingot are 12.0 cm and 3.00 cm respectively,what is the height of the ingot?

A)6.50 × 10^-3 cm
B)3.59 cm
C)10.2 cm
D)1.34 × 10³ cm

Question 24

The temperature scales of Kelvin,Celsius,and Fahrenheit use different ways to define scale.Which of the following correctly ranks the temperature from smallest to largest? 0°C,0°F,0K

A)0K < 0°C < 0°F
B)0°C < 0K < 0°F
C)0K < 0°F < 0°C
D)0°C = 0K = 0°F

Question 25

If the melting point of titanium metal is 1672°C,what is its melting point in Kelvin?

A)897 K
B)1399 K
C)1945 K
D)3042 K

Question 26

The nighttime and daytime temperatures on Mercury are 13 K and 683 K respectively.The melting point and boiling point of sulfur is 246°F and 832°F.Which of the following statements is true? On Mercury sulfur exists

A)only in the liquid state.
B)only in the solid state.
C)as both a liquid and a gas.
D)as both a liquid and a solid.

Question 27

Which of the following correctly ranks the following temperatures from smallest to largest? 23°C,17°F,273K,1°C

A)23°C < 17°F < 273K < 1°C
B)1°C < 17°F < 23°C < 273K
C)273K < 23°C < 1°C < 17°F
D)17°F < 273K < 1°C < 23°C

Question 28

One liter is approximately the same as one U.S.

A)ounce.
B)pint.
C)quart.
D)gallon.

Question 29

Specific gravity of a liquid is often defined as the ratio of the density of a substance to the density of water.If the specific gravity of X relative to water is 0.800 and the specific gravity of Y relative to water is 1.50,which of the following statements is false?

A)If X is a liquid,Y will float on X.
B)If X is a solid,X will float in water.
C)If Y is a liquid,water will float on Y.
D)If Y is a liquid,X will float in Y.

Question 30

Which one of the following statements about temperature scales is false?

A)The boiling point of water on the Fahrenheit scale is 212 degrees.
B)The Celsius degree is smaller than the Fahrenheit degree.
C)The freezing point of water on the Celsius scale is 0 degrees.
D)All temperatures on the Kelvin scale are positive numbers.

Question 31

A piece of plastic weighing 1.157 g has a volume of 1.48 cm³.A piece of wood has the same volume but weighs 3.85 g.The density of liquid X is 0.765 g/mL and the density of liquid Z is 1.13 g/mL.The two liquids are immiscible.If the plastic and wood are added to the two liquids,what is the order of layers from top to bottom in the container?

A)liquid X,liquid Z,plastic,wood
B)liquid X,plastic,liquid Z,wood
C)plastic,wood,liquid Z,liquid X
D)wood,liquid Z,plastic,liquid X

Question 32

Calculate the kinetic energy of a 150-g baseball moving at a speed of 40.m/s (89 mph).

A)6.0 J
B)1.2 × 10² J
C)6.0 × 10³ J
D)1.2 × 10⁵ J

Question 33

The density of aluminum is 2.702 g/cm³.What is the final liquid level of water if 1.130 ounces of aluminum is dropped into a graduated cylinder containing 15.90 mL of water?

A)17.08 mL
B)21.66 mL
C)27.76 mL
D)47.95 mL

Question 34

Because of the high heat and low humidity in the summer in Death Valley,California,a visitor requires about one quart of water for every two miles traveled on foot.If the density of water is 0.990 g/mL at 45°C,how many kilograms of water are required for a person to walk 30 kilometers in Death Valley?

A)8.7 kg
B)70 kg
C)3.5 × 10² kg
D)7.0 × 10² kg

Question 35

The volume of a well is 40.0 ft³.How many kilograms of concrete will it take to fill the well if the density of concrete is 2.85 g/cm³?

A)3.47 kg
B)3.23 × 10³ kg
C)3.47 × 10³ kg
D)3.23 × 10⁶ kg

Question 36

The estimated mass of the planet Jupiter is 1.90 × 10²⁷ kg and the density is believed to be 1.34 g/cm³.If Jupiter were a perfect sphere,what would be its diameter?

A)6.96 × 10⁶ m
B)6.96 × 10⁷ m
C)1.39 × 10⁷ m
D)1.39 × 10⁸ m

Question 37

The density of mercury is 13.5 g/mL.What is the mass in kg of mercury that fills a 0.250 L flask?

A)0.0540 kg
B)3.38 kg
C)54.0 kg
D)3380 kg

Question 38

The freezing point of methane is -295°F and the boiling point is -263°F.The temperature of the surface of Titan,a moon of Saturn,is 93 K.If methane exists on Titan,it is

A)a gas.
B)a liquid.
C)a solid.
D)a plasma.

Question 39

Pyrite is called fool's gold because it looks like real gold.However,pyrite has a density of 4.5 g/mL while gold has a density of 19.3 g/mL.Use this information to determine which of the following statements is true.

A)25 grams of gold will occupy a greater volume than 25 grams of pyrite.
B)25 grams of gold will occupy the same volume as 25 grams of pyrite.
C)25 mL of gold will have a greater mass than 25 mL of pyrite.
D)25 mL of gold will have less mass than 25 mL of pyrite.

Question 40

The density of copper is 8.96 g/cm³.What is the mass in mg of a cube of copper that measures 2.31 mm on each side?

A)0.0207 g
B)0.110 g
C)2.07 g
D)110 g

Question 41

A pure diamond has a density of 3.52 g/cm³.Which of the following equations will allow you to correctly calculate the density in terms of kg/dm³?

A) ××
B) ××
C) ××
D) ××

Question 42

A college runner set a school record of 3:59.37 in the mile run.Assuming that the distance was measured accurately to five significant figures,what was the runner's average speed in kilometers per hour?

A)9.3454 km/hr
B)10.375 km/hr
C)24.203 km/hr
D)26.869 km/hr

Question 43

A certain liquid has a density of 1.25 g/cm³.Which drawing below most closely represents the volume of this liquid needed to obtain 5.00 g of the liquid?

A)drawing (a)
B)drawing (b)
C)drawing (c)
D)drawing (d)

Question 44

Because of the high heat and low humidity in the summer in Death Valley,California,a visitor requires about one quart of water for every two miles traveled on foot.Calculate the approximate number of liters required for a person to walk 30.kilometers in Death Valley.

A)8.8 L
B)35 L
C)91 L
D)140 L

Question 45

Each of the numbers in the following calculation represents a quantity measured by a student in the laboratory. g = 0.0220 × × 12.0
After performing the calculation,the student's calculator appeared as shown below:
To the correct number of significant figures what is the value of g?

A)6 × 10^-3
B)6.0 × 10^-3
C)6.00 × 10^-3
D)6.000 × 10^-3

Question 46

How many significant figures are there in the answer to the following problem? (8.881 × 2.100)+ 0.590 = ?

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

Question 47

A fishing boat accidentally spills 15 barrels of diesel oil into the ocean.Each barrel contains 42 gallons.If the oil film on the ocean is 2.5 × 10² nm thick,how many square meters will the oil slick cover?

A)9.5 × 10^-3 m²
B)9.5 × 10⁶ m²
C)9.5 × 10⁷ m²
D)none of these

Question 48

The winner of the men's 1500-meter speed skating event at a recent Winter Olympics had a time of 1:45.57.Assuming that the distance was measured accurately to five significant figures,what was the skater's average speed in miles per hour?

A)31.790 mi/hr
B)38.418 mi/hr
C)51.151 mi/hr
D)61.826 mi/hr

Question 49

Each of the numbers in the following calculation represents a quantity measured by a student in the laboratory. P = After performing the calculation,the student's calculator appeared as shown below:
To the correct number of significant figures what is the value of P?

A)2
B)2.43
C)2.430
D)2.430094

Question 50

The temperature of 1.00 mL of water is raised by 1.00°C for every 4.184 joules of heat absorbed by the water.How many liters of water can be raised from 21.0°C to 100.0°C by the absorption of 8.88 kcal of heat generated by the combustion of natural gas?

A)0.112 L
B)2.13 L
C)37.2 L
D)168 L

Question 51

If 1.4% of the mass of a human body is calcium,how many kilograms of calcium are there in a 173-pound man?

A)1.1 kg Ca
B)5.3 kg Ca
C)1.1 × 10² kg Ca
D)5.3 × 10² kg Ca

Question 52

An international group of zookeepers with successful breeding programs made the following animal exchanges last year.Using the same bartering system,how many oryxes can a zoo obtain in exchange for 15 flamingos? 3 oryxes = 1 tiger 2 flamingos = 1 anteater
1 camel = 6 anteaters 5 lemurs = 1 rhino
1 rhino = 4 monkeys 3 lemurs = 1 camel
3 monkeys = 1 tiger 1 rhino = 4 oryxes

A)one oryx
B)three oryxes
C)four oryxes
D)five oryxes

Question 53

An automobile uses gasoline at a rate of 35 mi/gal,which is the same as ________ km/L (1 km = 0.6214 mi,1 gal = 3.78 L).

A)5.8
B)15
C)82
D)210

Question 54

A tortoise moves at a speed of 454 cm/min.How fast is the tortoise in mph?

A)0.17 mph
B)0.34 mph
C)17 mph
D)0.0017 mph

Question 55

When 1.0 gram of hydrogen reacts with 8.0 grams of oxygen 9.0 grams of water are produced and 142 kJ of heat are released.How many grams of hydrogen and how many grams of oxygen must react to produce 250 kJ of heat?

A)0.57 g H₂ and 4.5 g O₂
B)0.57 g H₂ and 14 g O₂
C)1.8 g H₂ and 4.5 g O₂
D)1.8 g H₂ and 14 g O₂

Question 56

Combustion of hydrogen releases 142 kJ per gram of hydrogen reacted.How many kilocalories of energy are released by the combustion of 16.0 ounces of hydrogen?

A)1.31 kcal
B)19.2 kcal
C)1.54 × 10⁴ kcal
D)2.69 × 10⁵ kcal

Question 57

To the correct number of significant figures,an automobile traveling at 28 mi/h is traveling at ________ km/h (1 km = 0.6214 mi).

A)17
B)17.40
C)45
D)45.06

Question 58

How many significant figures are there in the answer for the following problem? = ?

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

Question 59

You are visiting the planet Lagmom.The money exchange rates are shown below.How many Lagmom fizzbarts will you receive in exchange for $500 at the Lagmom Spaceport Currency Exchange counter? $1.00 = 10 razz 1 morb = 25 pobs
5 pobs = 1 fizzbart 5 razz = 1 tanta
1 tanta = 2 morbs

A)5.00 × 10² fizzbarts
B)1.00 × 10³ fizzbarts
C)1.00 × 10⁴ fizzbarts
D)5.00 × 10⁵ fizzbarts

Question 60

A motorcycle emits 9.5 g of carbon monoxide per kilometer driven.How many pounds of carbon monoxide does the motorcycle generate over 5.0 years if the motorcycle is driven 15,000 miles per year?

A)8.9 × 10¹ lb CO
B)9.8 × 10² lb CO
C)2.5 × 10³ lb CO
D)2.3 × 10⁴ lb CO

Question 61

To the correct number of significant figures,what is the temperature reading on the following Celsius thermometer?

A)15°C
B)15.6°C
C)15.67°C
D)16°C

Question 62

Which of the following is a fundamental SI Unit?

A)millimeter
B)meter
C)hectometer
D)nanometer

Question 63

Use the drawings below to answer the following questions.
If hitting the bull's-eye is the desired result,Figure (a)represents

A)good accuracy and good precision.
B)good accuracy and poor precision.
C)poor accuracy and good precision.
D)poor accuracy and poor precision.

Question 64

The factor 10⁶ corresponds to which prefix?

A)deka
B)deci
C)mega
D)milli

Question 65

Without using a calculator,solve the following problem:

A)1 × 10⁰
B)1 × 10^-3
C)1 × 10^-9
D)1 × 10^-12

Question 66

Convert 4.300 × 10^-3 to ordinary notation.

A)0.0004300
B)0.004300
C)430.0
D)4300

Question 67

To the correct number of significant figures,what is the temperature reading on the following Celsius thermometer?

A)21°C
B)21.7°C
C)21.70°C
D)22°C

Question 68

To the correct number of significant figures,what is the volume of the liquid in the graduated cylinder?

A)7 mL
B)7.0 mL
C)7.7 mL
D)8 mL

Question 69

Use the drawings below to answer the following questions.
If hitting the bull's-eye is the desired result,Figure (b)represents

A)good accuracy and good precision.
B)good accuracy and poor precision.
C)poor accuracy and good precision.
D)poor accuracy and poor precision.

Question 70

Use the drawings below to answer the following questions.
If hitting the bull's-eye is the desired result,Figure (c)represents

A)good accuracy and good precision.
B)good accuracy and poor precision.
C)poor accuracy and good precision.
D)poor accuracy and poor precision.

Question 71

The fundamental SI unit of mass is the

A)gigagram.
B)microgram.
C)kilogram.
D)decigram.

Question 72

A certain solid has a density of 8.0 g/cm³.If 4.0 g of this solid are poured into 4.00 mL of water,which drawing below most closely represents the volume of water after the solid is added?

A)drawing (a)
B)drawing (b)
C)drawing (c)
D)drawing (d)

Question 73

The factor 10 corresponds to which prefix?

A)centi
B)deci
C)deka
D)milli

Question 74

What symbol is used to represent the factor 10^-9?

A)G
B)c
C)μ
D)n

Question 75

All of the following are fundamental SI units except the

A)year.
B)kilogram.
C)mole.
D)Kelvin.

Question 76

What symbol is used to represent the factor 10^-2?

A)M
B)c
C)μ
D)n

Question 77

Without using a calculator,solve the following problem:

A)1 × 10²
B)1 × 10⁸
C)1 × 10²⁰
D)1 × 10²⁶

Question 78

To the correct number of significant figures,what is the level of the liquid in the buret?

A)0.2 mL
B)0.29 mL
C)0.3 mL
D)0.35 mL

Question 79

What symbol is used to represent the factor 10⁹?

A)M
B)m
C)μ
D)G

Question 80

Which of the following is the smallest unit?

A)13 centi
B)3.0 deci
C)3.3 × 10³ milli
D)1.5 × 10⁶ nano