 2.1Q: Why is it necessary to include units when reporting scientific meas...
 2.2Q: Why are the number of digits reported in scientific measurements im...
 2.3Q: Why is scientific notation useful?
 2.4Q: If a measured quantity is written correctly, which digits are certa...
 2.5Q: When do zeros count as significant digits and when don't they count?
 2.6Q: How many significant digits are there in exact numbers? What kinds ...
 2.7Q: What limits the number of significant digits in a calculation invol...
 2.8Q: What limits the number of significant digits in a calculation invol...
 2.9Q: How do we determine significant figures in calculations involving b...
 2.10Q: What are the rules for rounding numbers?
 2.11Q: What are the basic SI units of length, mass, and time?
 2.12Q: List the common units of volume.
 2.13Q: Suppose you are trying to measure the diameter of a Fris bee. What...
 2.14Q: What is the difference between mass and weight?
 2.15Q: Using a metric ruler, measure these objects to the correct number o...
 2.16Q: Using a stopwatch, measure each time to the correct number of signi...
 2.17Q: Explain why units are important in calculations.
 2.18Q: How are units treated in a calculation?
 2.19Q: What is a conversion factor?
 2.20Q: Why does the fundamental value of a quantity not change when you mu...
 2.21Q: Write the conversion factor that converts a measurement in inches t...
 2.22Q: Write conversion factors for each.(a) miles to kilometers(b) kilome...
 2.23Q: This book outlines a fourstep problemsolving strategy. Describe e...
 2.24Q: Experienced problem solvers always consider both the value and unit...
 2.25Q: Draw a solution map to convert a measurement in grams to pounds.
 2.26Q: Draw a solution map to convert a measurement in milliliters to gall...
 2.27Q: Draw a solution map to convert a measurement in meters to feet.
 2.28Q: Draw a solution map to convert a measurement in ounces to grams. (1...
 2.29Q: What is density? Explain why density can work as a conversion facto...
 2.30Q: Explain how you would calculate the density of a substance. Include...
 2.33P: Express each number in scientific notation.(a) 0.00000000007461 m (...
 2.34P: Express each number in scientific notation.(a) 0.000000001 s (time ...
 2.35P: Express each number in decimal notation (i.e., express the number w...
 2.37P: Express each number in decimal notation (i.e., express the number w...
 2.38P: Express each number in decimal notation (i.e., express the number w...
 2.39P: Express each number in decimal notation (i.e., express the number w...
 2.40P: Complete the table.Decimal NotationScientific Notation________4.2 ×...
 2.41P: Read each instrument to the correct number of significant figures. ...
 2.42P: Read each instrument to the correct number of significant figures. ...
 2.43P: For each measured quantity, underline the zeros that are significan...
 2.44P: For each measured quantity, underline the zeros that are significan...
 2.45P: How many significant figures are in each measured quantity?(a) 0.00...
 2.46P: How many significant figures are in each measured quantity?(a) 1300...
 2.47P: Correct any entries in. the table that are wrong.QuantitySignifican...
 2.48P: Correct any entries in the table that are wrong.QuantitySignificant...
 2.49P: Round each number to four significant figures.(a) 255.98612(b) 0.00...
 2.50P: Round each number to three significant figures.(a) 10,776.522(b) 4....
 2.51P: Round each number to three significant figures.(a) 10,776.522(b) 4....
 2.52P: Round each number to three significant figures.(a) 65.74(b) 65.749(...
 2.53P: Each number is supposed to be rounded to three significant figures....
 2.54P: Each number is supposed to be rounded to two significant figures. C...
 2.55P: Round the number on the left to the number of significant figures i...
 2.56P: Round the number on the left to the number of significant figures i...
 2.57P: Perform each calculation to the correct number of significant figur...
 2.58P: Perform each calculation to the correct number of significant figur...
 2.59P: Correct any answers that have the incorrect number of significant f...
 2.60P: Correct any answers that have the incorrect number of significant f...
 2.61P: Perform each calculation to the correct number of significant figur...
 2.62P: Perform each calculation to the correct number of significant figur...
 2.63P: Correct any answers that have the incorrect number of significant f...
 2.64P: Correct any answers that have the incorrect number of significant f...
 2.65P: Perform each calculation to the correct number of significant figur...
 2.66P: Perform each calculation to the correct number of significant figur...
 2.67P: Correct any answers that have the incorrect number of significant f...
 2.69P: Perform each conversion.(a) 3 .55 kg to grams(b) 8944 mm to meters(...
 2.70P: Perform each conversion.(a) 155.5 cm to meters(b) 2491.6 g to kilog...
 2.71P: Perform each conversion.(a) 5.88 dL to liters(b) 3 .41 × 10 ?5 g to...
 2.72P: Perform each conversion.(a) 1.08 Mm to kilometers(b) 4.88 fs to pic...
 2.73P: Perform each conversion.(a) 22.5 in. to centimeters(b) 126 ft to me...
 2.74P: Perform each conversion.(a) 78.3 in. to centimeters(b) 445 yd to me...
 2.75P: Perform each conversion.(a) 40.0 cm to inches(b) 27.8 m to feet(c) ...
 2.76P: Perform each conversion.(a) 254 cm to inches(b) 89 mm to inches(c) ...
 2.77P: Complete the table.mkmMmGmTm5.08 × 108 m_________508 Mm_________ __...
 2.78P: Complete the table.sms?snsps1.31 × 10?4 s_________131 ?s___________...
 2.79P: Convert 2.255 × 1010 g to each unit.(a) Kg(b) Mg(c) mg(d) metric to...
 2.80P: Convert 1.88 × 10?6 g to each unit.(a) mg(b) cg(c) ng(d) ?g
 2.81P: A student loses 3.3 lb in one month. How many grams did he lose?
 2.82P: A student gains 1.9 lb in two weeks. How many grams did he gain?
 2.83P: A runner wants to run 10.0 km. She knows that her running pace is 7...
 2.84P: A cyclist rides at an average speed of 24 mi/h. If he wants to bike...
 2.85P: A recipe calls for 5.0 qt of milk. What is this quantity in cubic c...
 2.86P: A gas can holds 2.0 gal of gasoline. What is this quantity in cubic...
 2.87P: Fill in the blanks.(a) 1.0 km2 =_____m2(b) 1.0 cm3 =_____m3(c) 1.0 ...
 2.88P: Fill in the blanks.(a) 1.0 ft2 =_____ in.2(b) 1.0 yd2 =_____ ft2(c)...
 2.89P: The hydrogen atom has a volume of approximately 6.2 ×10?31 m3. What...
 2.90P: Earth has a surface area of 197 million square miles. What is its a...
 2.91P: A house has an area of 215 m2. What is its area in each unit?(a) km...
 2.92P: A classroom has a volume of 285 m3. What is its volume in each unit...
 2.93P: Total U.S. farmland occupies 954 million acres. How many square mil...
 2.94P: The average U.S. farm occupies 435 acres. How many square miles is ...
 2.95P: A sample of an unknown metal has a mass of 35.4 g and a volume of 3...
 2.96P: A new penny has a mass of 2.49 g and a volume of 0.349 cm3. Is the ...
 2.97P: Glycerol is a syrupy liquid often used in cosmetics and soaps. A 2....
 2.98P: An aluminum engine block has a volume of 4.77 L and a mass of 12.88...
 2.99P: A supposedly gold crown is tested to determine its density. It disp...
 2.100P: A vase is said to be solid platinum. It displaces 18.65 mL of water...
 2.101P: Ethylene glycol (antifreeze) has a density of 1.11 g/cm3.(a) What i...
 2.102P: Acetone (fingernailpolish remover) has a density of 0.7857 g/cm3.(...
 2.103P: A thief uses a bag of sand to replace a gold statue that sits on a ...
 2.104P: One of the particles in an atom is the proton. A proton has a radiu...
 2.105P: A block of metal has a volume of 13.4 in.3 and weighs 5.14 lb. What...
 2.106P: A log is either oak orpine. It displaces 2.7 gal of water and weigh...
 2.107P: The density of aluminum is 2.7 g/cm3. What is its density in kilogr...
 2.108P: The density of platinum is 21.4 g/cm3. What is its density in pound...
 2.109P: A typical backyard swimming pool holds 150 yd3 of water. What is th...
 2.110P: An iceberg has a volume of 8975 ft3. What is the mass in kilograms ...
 2.111P: The mass of fuel in an airplane must be determined before takeoff. ...
 2.112P: backpacker carries 2.5 L of white gas as fuel for her stove. How ma...
 2.113P: Honda produces a hybrid electric car called the Honda Insight. The ...
 2.114P: You rent a car in Germany with a gas mileage rating of 12.8 km/L. W...
 2.115P: A car has a mileage rating of 38 mi per gallon of gasoline. How man...
 2.116P: A hybrid SUV consumes fuel at a rate of 12.8 km/L. How many miles c...
 2.117P: Block A of an unknown metal has a volume of 125 cm3. Block B of a d...
 2.118P: Block A of an unknown metal has a volume of 125 cm3. Block B of a d...
 2.119P: You measure the masses and volumes of two cylinders. The mass of cy...
 2.120P: A bag contains a mixture of copper and lead BBs. The average densit...
 2.123P: In 1999, NASA lost a $94 million orbiter because one group of engin...
 2.125P: In 1999, scientists discovered a new class of black holes with mass...
 2.126P: A titanium bicycle frame contains the same amount of titanium as a ...
Solutions for Chapter 2: Introductory Chemistry 5th Edition
Full solutions for Introductory Chemistry  5th Edition
ISBN: 9780321910295
Solutions for Chapter 2
Get Full SolutionsSince 119 problems in chapter 2 have been answered, more than 445393 students have viewed full stepbystep solutions from this chapter. Chapter 2 includes 119 full stepbystep solutions. This expansive textbook survival guide covers the following chapters and their solutions. This textbook survival guide was created for the textbook: Introductory Chemistry, edition: 5. Introductory Chemistry was written by and is associated to the ISBN: 9780321910295.

amorphous
A region of a polymer in which nearby chains are not linearly extended and are not parallel to one another.

androgens
Male sex hormones.

bond enthalpy.
The enthalpy change required to break a bond in a mole of gaseous molecules. (9.10)

cathode
An electrode at which reduction occurs. (Section 20.3)

chiral
An object that is not superimposable on its mirror image.

Coulomb’s law.
The potential energy between two ions is directly proportional to the product of their charges and inversely proportional to the distance between them. (9.3)

deoxyribonucleic acids (DNA).
A type of nucleic acid. (25.4)

electromagnetic radiation (radiant energy)
A form of energy that has wave characteristics and that propagates through a vacuum at the characteristic speed of 3.00 * 108 m >s. (Section 6.1)

electrophoresis
A technique for separating amino acids from each other based on a difference in pI values.

FriedelCrafts acylation
An electrophilic aromatic substitution reaction that installs an acyl group on an aromatic ring.

instantaneous rate
The reaction rate at a particular time as opposed to the average rate over an interval of time. (Section 14.2)

Order of precedence of functions
A ranking of functional groups in order of priority for the purposes of IUPAC nomenclature.

pure substance
Matter that has a fixed composition and distinct properties. (Section 1.2)

rotational motion
Movement of a molecule as though it is spinning like a top. (Section 19.3)

Shell
A region of space around a nucleus that can be occupied by electrons, corresponding to a principal quantum number

symmetry allowed
A reaction that obeys conservation of orbital symmetry.

Tautomers
Constitutional isomers in equilibrium with each other that differ in the location of a hydrogen atom and a double bond relative to a heteroatom, most commonly O, N, or S.

terminal alkynes
Compounds with the following structure: R!C#C!H

thiols
Compounds containing a mercapto group (SH).

vicinal
A term used to describe two identical groups attached to adjacent carbon atoms.