Solutions for CHEMISTRY:MOLECULAR NATURE (LL)W/ACCESS
Problem 1PE:
Practice Exercise 1.1
What is the process of the scientific method? (Hint: Use Figure 1.2).
Problem 2PE:
Practice Exercise 1.2
Classify the following as an element, compound, or mixture. If it is a...Problem 3PE:
Practice Exercise 1.3
Each of the following can be classified as a physical or chemical change....Problem 4PE:
Practice Exercise 1.4
Each of these properties can be classified as intensive or extensive. Identify...Problem 8PE:
Convert 55F to its Celsius temperature. What Kelvin temperature corresponds to 68F (expressed to the...Problem 10PE:
Perform the following calculations involving measurements and round the results so that they are...Problem 11PE:
Practice Exercise 1.11
Use dimensional analysis to convert an area of 124 square feet to square...Problem 12PE:
Use dimensional analysis to perform the following conversions: (a) 3.00yd3toinches3, (b) 1.25 km to...Problem 13PE:
A 15.0 mL sample of polystyrene used in insulated foam cups weighs 0.244 g. What is the density of...Problem 14PE:
Practice Exercise 1.14
A crystal of salt was grown and found to have a mass of 0.547 g. When the...Problem 15PE:
A gold-colored metal object has a mass of 365 g and a volume of 22.12cm3. Is the object composed of...Problem 16PE:
Practice Exercise 1.16
A certain metal alloy has a density of . How many pounds would of this alloy...Problem 17PE:
Practice Exercise 1.17
Table wines have a minimum specific gravity of 1.090. If a barrel of wine...Problem 18PE:
Practice Exercise 1.18
Diabetes can cause a decrease in the specific gravity of urine. If normal...Problem 1RQ:
After some thought, give two reasons why a course in chemistry will benefit you in the pursuit of...Problem 2RQ:
What steps are involved in the scientific method?Problem 5RQ:
1.5 Define matter. Which are examples of matter? (a) air, (b) an idea, (c) a bowl of soup, (d) a...Problem 6RQ:
Define (a) element, (b) compound, (c) mixture, (d) homogeneous, (e) heterogeneous, (f) phase, (g)...Problem 7RQ:
1.7 Which kind of change, chemical or physical, is needed change a compound into its elements?
Problem 9RQ:
1.9 What is the name of each of the following elements?
(a) Na, (b) Zn, (c) Si, (d) Sn, (e) Mg, (f)...Problem 10RQ:
For each of the following molecular pictures, state whether it represents a pure substance or a...Problem 11RQ:
1.11 Consider the following four samples of matter.
(a) Which sample(s) consist of only one...Problem 12RQ:
1.12 What is a physical change? What is a chemical change? What is the chief distinction between...Problem 13RQ:
1.13 “A sample of calcium (an electrically conducting white metal that is shiny, relatively soft,...Problem 14RQ:
1.14 In places like Saudi Arabia, freshwater is scarce and is recovered from seawater. When seawater...Problem 17RQ:
Determine whether each of the following is an intensive or extensive property, and justify your...Problem 18RQ:
Describe one or more physical properties of each state of matter that distinguishes it from the...Problem 19RQ:
Why must measurements always be written with a unit?Problem 20RQ:
What is the only SI base unit that includes a prefix?Problem 21RQ:
Which SI units are mainly used in chemistry?Problem 23RQ:
What is the meaning of each of the following prefixes? What abbreviation is used for each prefix?...Problem 24RQ:
What reference points do we use in calibrating the scale of a thermometer? What temperature on the...Problem 25RQ:
In each pair, which is larger: (a) A Fahrenheit degree or a Celsius degree? (b) A Celsius degree or...Problem 26RQ:
1.26 Define the term significant figures.
Problem 27RQ:
Explain how to round numbers.Problem 28RQ:
What is the difference between accuracy and precision?Problem 29RQ:
1.29 Suppose a length had been reported to be 31.24 cm. What is the minimum uncertainty implied in...Problem 30RQ:
What is the difference between the treatment of significant figures in addition and multiplication?Problem 31RQ:
When constructing a conversion factor between two units, which unit becomes the numerator and which...Problem 32RQ:
Suppose someone suggested using the fraction 3 yd/1 ft as a conversion factor to change a length...Problem 33RQ:
In 1 hour there are 3600 seconds. By what conversion factor would you multiply 250 seconds to...Problem 34RQ:
If you were to convert the measured length 4.165 ft to yards by multiplying by the conversion factor...Problem 36RQ:
Compare density and specific gravity. What is the difference between the two? When would specific...Problem 37RQ:
1.37 Give four sets of units for density. What mathematical operation must be carried out to convert...Problem 38RQ:
1.38 Silver has a density of . Express this as an equivalence between mass and volume for silver....Problem 39RQ:
Determine whether each of the following is a physical or chemical change, and explain your...Problem 40RQ:
1.40 Determine whether each of the following is a physical or chemical change, and explain your...Problem 41RQ:
At room temperature, what is the state of each of the following? If necessary, look up the...Problem 42RQ:
At room temperature, determine the appropriate phase for each of the following substances. (Look up...Problem 43RQ:
What number should replace the question mark in each of the following? (a) l cm = ? m (b) 1 km = ? m...Problem 47RQ:
The temperature of the core of the sun is estimated to be about 15.7 million K. What is this...Problem 48RQ:
Natural gas is mostly methane, a substance that boils at a temperature of 109 K. What is its boiling...Problem 49RQ:
A healthy dog has a temperature ranging from 37.8Cto39.2C. Is a dog with a temperature of 103.5F...Problem 51RQ:
The length of a wire was measured using two different rulers. What are the lengths of the wire and...Problem 52RQ:
What are the temperatures being measured in the two thermometers, and how many significant figures...Problem 53RQ:
1.53 How many significant figures do the following measured quantities have?
(a) 37.53 cm
(b) 37.240...Problem 54RQ:
How many significant figures do the following measured quantities have? (a) 0.0230 g (b) 105.303 m...Problem 55RQ:
1.55 Perform the following arithmetic and round off the answers to the correct number of significant...Problem 56RQ:
1.56 Perform the following arithmetic and round off the answers to the correct number of significant...Problem 57RQ:
Which are exact numbers and which ones have a finite number of significant figures? (a) the volume...Problem 59RQ:
1.59 Perform the following conversions.
Problem 60RQ:
1.60 Perform the following conversions.
Problem 61RQ:
1.61 Perform the following conversions. If necessary, refer to Tables 1.3 and 1.4. (a) 36 in. to cm...Problem 62RQ:
1.62 Perform the following conversions. If necessary, refer to Tables 1.3 and 1.4. (a)250 mL to qt...Problem 65RQ:
The human stomach can expand to hold up to 4.2 quarts of food. A pistachio nut has a volume of about...Problem 66RQ:
In the movie Cool Hand Luke (1967), Luke wagers that he can eat 50 eggs in one hour. The prisoners...Problem 67RQ:
1.67 The winds in a hurricane can reach almost 200 miles per hour. What is this speed in meters per...Problem 68RQ:
1.68 A bullet is fired at a speed of 2435 ft/s. What is this speed expressed in kilometers per hour?Problem 69RQ:
1.69 A bullet leaving the muzzle of a pistol was traveling at a speed of 2230 feet per second. What...Problem 70RQ:
1.70 On average, water flows over Niagara Falls at a rate of 2.05105 cubic feet per second. One...Problem 72RQ:
*1.72 One degree of latitude on the earth’s surface equals 60.0 nautical miles. One nautical mile...Problem 73RQ:
Calculate the density of kerosene, in g/mL, if its mass is 36.4 g and its volume is 45.6 mL.Problem 74RQ:
Calculate the density of magnesium, in g/cm3, if its mass is 14.3 g and its volume is 8.46cm3.Problem 75RQ:
Acetone, the solvent in some nail polish removers, has a density of 0.791 g/mL. What is the volume,...Problem 76RQ:
A glass apparatus contains 26.223 g of water when filled at 25C. At this temperature, water has a...Problem 77RQ:
1.77 Chloroform, a chemical once used as an anesthetic, has a density of 1.492 g/mL. What is the...Problem 78RQ:
Gasolines density is about 0.65 g/mL. How much does 34 L (approximately 18 gallons) weigh in...Problem 81RQ:
The space shuttle uses liquid hydrogen as its fuel. The external fuel tank used during takeoff...Problem 83RQ:
1.83 Some time ago, a U.S. citizen traveling in Canada observed that the price of regular gasoline...Problem 84RQ:
Driving to work one day, one of the authors of this book had a gas mileage of 28.5 km/L. Another...Problem 88RQ:
A pycnometer is a glass apparatus used for accurately determining the density of a liquid. When dry...Problem 89RQ:
1.89 Radio waves travel at the speed of light, . If you were to broadcast a question to the Mars...Problem 92RQ:
Aerogel or solid smoke" is a novel material that is made of silicon dioxide, like glass, but is a...Problem 93RQ:
A liquid known to be either ethanol (ethyl alcohol) or methanol (methyl alcohol) was found to have a...Problem 94RQ:
An unknown liquid was found to have a density of 69.22lb/ft3. The density of ethylene glycol (the...Problem 95RQ:
1.95 There exists a single temperature at which the value reported in is numerically the same as...Problem 96RQ:
In the text, the Kelvin scale of temperature is defined as an absolute scale in which one Kelvin...Problem 97RQ:
Density measurements can be used to analyze mixtures. For example, the density of solid sand...Problem 98RQ:
An artist's statue has a surface area of 14.6ft2. The artist plans to apply gold leaf to the statue...Problem 99RQ:
What is the volume in cubic millimeters of a 3.54 carat diamond, given that the density of diamond...Problem 100RQ:
1.100 A solution is defined as a uniform mixture consisting of a single phase. With our vastly...Problem 101RQ:
How do you know that Coca-Cola is not a compound? What experiments could you perform to prove it?...Problem 102RQ:
Find two or more web sites that give the values for each of the seven base SI units. Keeping in mind...Problem 103RQ:
1.103 Reference books such as the Handbook of Chemistry and Physics report the specific gravities of...Problem 104RQ:
A student used a 250 mL graduated cylinder having volume markings every 2 mL to carefully measure...Problem 106RQ:
Gold has a density of 19.31gcm-3. How many grams of gold are required to provide a gold coating...Problem 107RQ:
A Boeing 747 jet airliner carrying 568 people burns about 5.0 gallons of jet fuel per mile. What is...Problem 108RQ:
*1.108 Download a table of data for the density of water between its freezing and boiling points....Browse All Chapters of This Textbook
Chapter 0 - A Very Brief History Of ChemistrChapter 1 - Scientific MeasurementChapter 2 - Elements, Compounds, And The Periodic TableChapter 3 - The Mole And StoichiometryChapter 4 - Molecular View Of Reactions In Aqueous SolutionsChapter 5 - Oxidation–reduction ReactionChapter 6 - Energy And Chemical ChangeChapter 7 - The Quantum Mechanical AtomChapter 8 - The Basics Of Chemical BondingChapter 9 - Theories Of Bonding And Structure
Chapter 10 - Properties Of GasesChapter 11 - Intermolecular Attractions And The Properties Of Liquids And SolidsChapter 12 - Mixtures At The Molecular Level: Properties Of SolutionsChapter 13 - Chemical KineticChapter 14 - Chemical EquilibriumChapter 15 - Acids And Bases, A Molecular LookChapter 16 - Acid–base Equilibria In Aqueous SolutionsChapter 17 - Solubility And Simultaneous EquilibriaChapter 18 - ThermodynamicsChapter 19 - ElectrochemistryChapter 20 - Nuclear Reactions And Their Role In ChemistryChapter 21 - Metal ComplexesChapter 22 - Organic Compounds, Polymers, And Biochemicals
Sample Solutions for this Textbook
We offer sample solutions for CHEMISTRY:MOLECULAR NATURE (LL)W/ACCESS homework problems. See examples below:
Chapter 0, Problem 1PEChapter 1, Problem 1PEChapter 2, Problem 1PEChapter 3, Problem 1PEa) CaI2 CaI2 consists of calcium and iodine atoms. Calcium is in the group 2A and has a charge of 2+...Chapter 5, Problem 1PEGiven information: The pudding contains 140 Cal per serving. Nutritional calories are related to...Chapter 7, Problem 1PEChapter 8, Problem 1PE
Chapter 9, Problem 1PEGaseous molecules have a very weak force of attraction within them; therefore they are free to move...The graph is as: As the intensity of the attractive force is reduced constantly, the variation in...Chapter 12, Problem 1PEChapter 13, Problem 1PEChapter 14, Problem 1PEChapter 15, Problem 1PEGiven information: The molarity of the hydronium ion is 12 M. The moles of HCl in the solution is 12...Chapter 17, Problem 1PEChapter 18, Problem 1PEChapter 19, Problem 1PEGiven information: The rest mass of tennis ball is 57.7 g. The mass of the tennis ball is calculated...The most common oxidation state of silver Ag is +1 is when it loses one electron and becomes Ag+...a) The molecular formula of the given organic compound consists of 6 carbon atoms and 14 hydrogen...
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