1 Patterns Of Motion And Equilibrium 2 Newton's Laws Of Motion 3 Momentum And Energy 4 Gravity, Projectiles, And Satellites 5 Fluid Mechanics 6 Thermal Energy And Thermodynamics 7 Heat Transfer And Change Of Phase 8 Static And Current Electricity 9 Magnetism And Electromagnetic Induction 10 Waves And Sound 11 Light 12 Atoms And The Periodic Table 13 The Atomic Nucleus And Radioactivity 14 Elememts Of Chemistry 15 How Atoms Bond And Molecules Attract 16 Mixtures 17 How Chemicals React 18 Two Classes Of Chemical Reactions 19 Organic Compounds 20 Rocks And Minerals 21 Plate Tectonics And Earth's Interior 22 Shaping Earth's Surface 23 Geologic Time - Reading The Rock Record 24 The Oceans, Atmosphere, And Climatic Effects 25 Driving Forces Of Weather 26 The Solar System 27 Stars And Galaxies 28 The Structure Of Space And Time expand_more
Chapter Questions expand_more
Problem 1RCQ Problem 2RCQ Problem 3RCQ Problem 4RCQ Problem 5RCQ: How is a solution different from a suspension? Problem 6RCQ: How can a solution be separated from a suspension? Problem 7RCQ: What happens to the volume of a sugar solution as more sugar is dissolved in it? Problem 8RCQ Problem 9RCQ: What does it mean to say that a solution is concentrated? Problem 10RCQ: Is concentration typically given with the volume of solvent or the volume of solution? Problem 11RCQ: Why does the solubility of a gas solute in a liquid solvent decrease with increasing temperature? Problem 12RCQ: Why do sugar crystals dissolve faster when crushed? Problem 13RCQ: Is sugar a polar or nonpolar substance? Problem 14RCQ: Which portion of a soap molecule is nonpolar? Problem 15RCQ: What is the difference between a soap and a detergent? Problem 16RCQ Problem 17RCQ: Why are soap molecules so attracted to calcium and magnesium ions? Problem 18RCQ: Why is treated water sprayed into the air before it is piped to users? Problem 19RCQ: What are two ways in which people disinfect water in areas where municipal treatment facilities are... Problem 20RCQ: What naturally occurring element has been contaminating the water supply of Bangladesh? Problem 21RCQ: Why can wastewater treatment requirements in Hawaii be less stringent than those in most locations... Problem 22RCQ: What is the first step in treating raw sewage? Problem 23RCQ Problem 30TAS Problem 31TAS Problem 32TAS Problem 33TAS: How much sodium chloride, in grams, is needed to make 15 L of a solution that has a concentration of... Problem 34TAS: If water is added to 1 mole of sodium chloride in a flask until the volume of the solution is 1 L,... Problem 35TAS: A student is told to use 20.0 g of sodium chloride to make an aqueous solution that has a... Problem 36TAR: Rank the following solutions in order of increasing concentration: solution A, 0.5 mole of sucrose... Problem 37TAR: Rank the following compounds in order of increasing solubility in water: Problem 38TAR Problem 39E: How might you separate a mixture of sand and salt? How about a mixture of iron and sand? Problem 40E: Mixtures can be separated into their components by taking advantage of differences in the chemical... Problem 41E: Why can't the elements of a compound be separated from one another by physical means? Problem 42E: Many dry cereals are fortified with iron, which is added to the cereal in the form of small iron... Problem 43E: The Chemist's Classification of Matter 43. Classify each of the following as (a) homogeneous... Problem 44E: Classify each of the following as an element, compound, or mixture, and justify your... Problem 45E: 45. Which of these boxes best represents a suspension? Problem 46E Problem 47E Problem 48E Problem 49E: Which is more dense: air saturated with water vapor or air unsaturated with water vapor? Problem 50E: How many sugar molecules are there in a 2 M sugar solution? Problem 51E Problem 52E: Which should weigh more: 100 mL of fresh water or 100 mL of fresh sparkling seltzer water? Why?... Problem 53E: Explain why, for these three substances, the solubility in 20C water goes down as the molecules get... Problem 54E: The boiling point of 1,4-butanediol is 230C. Would you expect this compound to be soluble or... Problem 55E: Based on atomic size, which would you expect to be more soluble in water: helium, He, or nitrogen,... Problem 56E: If nitrogen, N2, were pumped into your lungs at high pressure, what would happen to its solubility... Problem 57E Problem 58E: Account for the observation that ethanol, C2H5OH, dissolves readily in water, but dimethyl ether,... Problem 59E: At 10C, which is more concentrated: a saturated solution of sodium nitrate, NaNO3, or a saturated... Problem 60E: Why is rain or snow called precipitation? Problem 61E Problem 62E: Some bottled water is now advertised as containing extra quantities or "Vitamin O," which is a... Problem 63E: Two plastic bottles of fresh seltzer water are opened. Three-fourths of the first bottle are poured... Problem 64E: Why can 500 mL of fresh water absorb more gaseous carbon dioxide than 500 mL of sugar water at the... Problem 65E: Would you expect to find more dissolved oxygen in ocean water around the northern latitudes or in... Problem 66E: Soaps, Detergents, and Hard Water Fatty acid molecules can align to form a barrier called a bilipid... Problem 67E: Fatty acid molecules can also align to form a bilipid layer that extends in three dimensions. Shown... Problem 68E Problem 69E: A scum forms on the surface of boiling hard water. What is this scum? Why does it form? And why do... Problem 70E: Calcium and magnesium ions are more attracted to sodium carbonate than to soap. Why? Problem 71E: Phosphate ions, PO43-, were once added to detergents to assist in cleaning. What function did they... Problem 72E: Oils at the top of a tree have a higher concentration of sugars than cells at the bottom. How might... Problem 73E: Why is distilling water so relatively expensive? Problem 74E: What reverses with reverse osmosis? Problem 75E: Why is it significantly less costly to purify fresh water through reverse osmosis than to purify... Problem 76E Problem 77E: Many homeowners get their drinking; water piped up from wells dug into their property. Sometimes... Problem 78E: Is the decomposition of food by bacteria in our digestive systems aerobic or anaerobic? What... Problem 79E: Where does most of the solid mass of raw sewage end up after being collected at a treatment... Problem 80E: Why is flushing a toilet with clean water from a municipal supply about as wasteful as flushing it... Problem 82DQ: Why are people so willing to buy bottled water when it is so expensive, both financially and... Problem 83DQ: It is possible to tow icebergs to coastal cities as a source of fresh water. What... Problem 1RAT: Someone argues that he or she doesn't drink tap water because it contains thousands of molecules of... Problem 2RAT Problem 3RAT: The air in your house is an example of a (a) homogeneous mixture because it is mixed very well. (b)... Problem 4RAT: Half-frozen fruit punch is always sweeter than the same fruit punch completely melted because (a)... Problem 5RAT: Why is sodium chloride, NaCl, insoluble in gasoline? Consider the electrical attractions. (a)... Problem 6RAT: Fish don't live very long in water that has just been boiled and brought back to room temperature.... Problem 7RAT Problem 8RAT: What is an advantage of using chlorine gas to disinfect drinking water supplies? (a) It provides... Problem 9RAT: Why do red blood cells, which contain an aqueous solution of dissolved ions and minerals, burst when... Problem 10RAT: A stagnant pond smells worse than a babbling brook because (a) odors are not transported downstream.... format_list_bulleted