Multiple ChoiceIf the distance between Washington, D.C. and New York City is 224.9 miles, determine the distance in centimeters.5033Has a video solution.
Multiple ChoiceLipitor, a pharmaceutical drug that has been shown to lower 'bad' cholesterol levels, while boosting 'good' cholesterol levels had over $12 billion in sales last year. Each pill weighs 2.5 g, which contains 4.0% of the active ingredient by mass. What mass in kg of the active ingredient is present in one bottle of 120 pills?6511Has a video solution.
Textbook QuestionConsider the jar of jelly beans in the photo. To get an estimate of the number of beans in the jar you weigh six beans and obtain masses of 3.15, 3.12, 2.98, 3.14, 3.02, and 3.09 g. Then you weigh the jar with all the beans in it, and obtain a mass of 2082 g. The empty jar has a mass of 653 g. Based on these data, estimate the number of beans in the jar. Justify the number of significant figures you use in your estimate.360Has a video solution.
Textbook QuestionA person runs at a pace of 6.52 mi/hr. How long does it take the person to run a 15.0 km race? (1 mi = 1.61 km) (LO 1.17) (a) 85.7 min (b) 222 min (c) 50.0 min (d) 93.4 min261Has a video solution.
Textbook QuestionThe radius of an atom of tungsten (W) is about 2.10 A . (c) If the atom is assumed to be a sphere, what is the volume in m3 of a single W atom?192Has a video solution.
Textbook QuestionThe radius of an atom of tungsten (W) is about 2.10 A . (b) How many tungsten atoms would have to be lined up to create a wire of 2.0 mm?437Has a video solution.
Textbook QuestionThe radius of an atom of tungsten (W) is about 2.10 A . (a) Express this distance in nanometers (nm).286Has a video solution.
Textbook QuestionThe radius of an atom of copper (Cu) is about 140 pm. (c) If you assume that the Cu atom is a sphere, what is the volume in cm3 of a single atom?814Has a video solution.
Textbook QuestionIf Avogadro's number of pennies is divided equally among the 321 million men, women, and children in the United States, how many dollars would each receive?438Has a video solution.
Textbook QuestionThe Ogallala aquifer described in the Closer Look box in Section 18.3, provides 82% of the drinking water for the people who live in the region, although more than 75% of the water that is pumped from it is for irrigation. Irrigation withdrawals are approximately 18 billion gallons per day. (a) Assuming that 2% of the rainfall that falls on an area of 600,000 km2 recharges the aquifer, what average annual rainfall would be required to replace the water removed for irrigation?180Has a video solution.
Textbook QuestionThe physical fitness of athletes is measured by 'VO2 max,' which is the maximum volume of oxygen consumed by an individual during incremental exercise (for example, on a treadmill). An average male has a VO2 max of 45 mL O2>kg body mass/min, but a world-class male athlete can have a VO2 max reading of 88.0 mL O2>kg body mass/min. (a) Calculate the volume of oxygen, in mL, consumed in 1 hr by an average man who weighs 85 kg and has a VO2 max reading of 47.5 mL O2>kg body mass/min.544Has a video solution.
Textbook QuestionThe estimated concentration of gold in the oceans is 1.0 * 10^-11 g/mL. (b) Assuming that the volume of the oceans is 1.3 * 10^21 L, estimate the amount of dissolved gold in grams in the oceans.413Has a video solution.
Textbook Question(d) Bamboo can grow up to 60.0 cm/day. Convert this growth rate into inches per hour.420Has a video solution.
Textbook Question(b) The lung capacity of the blue whale is 5.0 * 103 L. Convert this volume into gallons.697Has a video solution.
Textbook Question(a) A bumblebee flies with a ground speed of 15.2 m/s. Calculate its speed in km/hr.488Has a video solution.
Textbook Question(a) The speed of light in a vacuum is 2.998 * 108 m>s. Calculate its speed in miles per hour.4711Has a video solution.
Textbook Question(d) An individual suffering from a high cholesterol level in her blood has 242 mg of cholesterol per 100 mL of blood. If the total blood volume of the individual is 5.2 L, how many grams of total blood cholesterol does the individual's body contain?991Has a video solution.
Textbook Question(c) The Vehicle Assembly Building at the Kennedy Space Center in Florida has a volume of 3,666,500 m3. Convert this volume to liters and express the result in standard exponential notation.242Has a video solution.
Textbook Question(b) The Sears Tower in Chicago is 1454 ft tall. Calculate its height in meters.251Has a video solution.
Textbook QuestionPerform the following conversions: (d) 0.510 in./ms to km/hr385Has a video solution.
Textbook QuestionPerform the following conversions: (c) $1.89/gal to dollars per liter353Has a video solution.
Textbook QuestionCarry out the following conversions: (e) $3.99/lb to dollars per kg246Has a video solution.
Textbook Question(a) How many liters of wine can be held in a wine barrel whose capacity is 31 gal?395Has a video solution.
Textbook Question(c) If an automobile is able to travel 400 km on 47.3 L of gasoline, what is the gas mileage in miles per gallon?267Has a video solution.
Textbook Question(d) When the coffee is brewed according to directions, a pound of coffee beans yields 50 cups of coffee 14 cups = 1 qt2. How many kg of coffee are required to produce 200 cups of coffee?585Has a video solution.
Textbook Question(b) The recommended adult dose of Elixophyllin®, a drug used to treat asthma, is 6 mg/kg of body mass. Calculate the dose in milligrams for a 185-lb person.32471Has a video solution.
Textbook QuestionComplete the table. a. 355 km>s _____cm>s _____m>ms b. 1228 g>l _____g>ml _____kg>ml c. 554 mK>s _____K>s _____mK>ms d. 2.554 mg>ml _____g>l _____mg>ml2421Has a video solution.
Textbook Question(d) In March 1989, the Exxon Valdez ran aground and spilled 240,000 barrels of crude petroleum off the coast of Alaska. One barrel of petroleum is equal to 42 gal. How many liters of petroleum were spilled?308Has a video solution.
Textbook Question(a) If an electric car is capable of going 225 km on a single charge, how many charges will it need to travel from Seattle, Washington, to San Diego, California, a distance of 1257 mi, assuming that the trip begins with a full charge?330Has a video solution.
Textbook QuestionComplete the table. a. 355 km>s _____cm>s _____m>ms b. 1228 g>l _____g>ml _____kg>ml c. 554 mK>s _____K>s _____mK>ms d. 2.554 mg>ml _____g>l _____mg>ml215Has a video solution.
Textbook QuestionGold can be hammered into extremely thin sheets called gold leaf. An architect wants to cover a 30 m * 25 m ceiling with gold leaf that is twelve-millionths of a centimeter thick. The density of gold is 19.32 g>cm3, and gold costs $1654 per troy ounce 11 troy ounce = 31.1034768 g2. How much will it cost the architect to buy the necessary gold?799Has a video solution.
Textbook QuestionWhat is the volume in L of a cube with an edge length of 7.0 dm?396Has a video solution.
Textbook QuestionWhat is the volume in mL of a cube with an edge length of 2.5 cm?312Has a video solution.
Textbook QuestionThe distance from Earth to the Moon is approximately 240,000 mi. (d) Earth travels around the Sun at an average speed of 29.783 km>s. Convert this speed to miles per hour.4431Has a video solution.
Textbook QuestionThe distance from Earth to the Moon is approximately 240,000 mi. (c) The speed of light is 3.00 * 108 m>s. How long does it take for light to travel from Earth to the Moon and back again?327Has a video solution.
Textbook QuestionThe distance from Earth to the Moon is approximately 240,000 mi. (a) What is this distance in meters?721Has a video solution.
Textbook QuestionThe distance from Earth to the Moon is approximately 240,000 mi. (b) The peregrine falcon has been measured as traveling up to 350 km/ hr in a dive. If this falcon could fly to the Moon at this speed, how many seconds would it take?437Has a video solution.
Textbook QuestionThe U.S. quarter has a mass of 5.67 g and is approximately 1.55 mm thick. (c) How much money would this stack contain?548Has a video solution.
Textbook QuestionThe U.S. quarter has a mass of 5.67 g and is approximately 1.55 mm thick. (a) How many quarters would have to be stacked to reach 575 ft, the height of the Washington Monument?816Has a video solution.
Textbook QuestionIn the United States, water used for irrigation is measured in acre-feet. An acre-foot of water covers an acre to a depth of exactly 1 ft. An acre is 4840 yd2. An acre-foot is enough water to supply two typical households for 1.00 yr. (a) If desalinated water costs $1950 per acre-foot, how much does desalinated water cost per liter?444Has a video solution.
Textbook QuestionThe American Dental Association recommends that an adult female should consume 3.0 mg of fluoride (F - ) per day to prevent tooth decay. If the fluoride is consumed in the form of sodium fluoride (45.24% F), what amount of sodium fluoride contains the recommended amount of fluoride?808Has a video solution.
Textbook QuestionIn 1986 an electrical power plant in Taylorsville, Georgia, burned 8,376,726 tons of coal, a national record at that time. (a) Assuming that the coal was 83% carbon and 2.5% sulfur and that combustion was complete, calculate the number of tons of carbon dioxide and sulfur dioxide pro- duced by the plant during the year.908Has a video solution.
Textbook QuestionIn January 2006, the New Horizons space probe was launched from Earth with the mission to perform a flyby study of Pluto. The arrival at the dwarf planet was estimated to happen after nine years, in 2015. The distance between Earth and Pluto varies depending on the location of the planets in their orbits, but at their closest, the distance is 4.2 billion kilometers (2.6 billion miles). Calculate the minimum amount of time it takes for a transmitted signal from Pluto to reach the Earth.285Has a video solution.
Textbook QuestionA 40-lb container of peat moss measures 14 * 20 * 30 in. A 40-lb container of topsoil has a volume of 1.9 gal. (b) How many bags of peat moss are needed to cover an area measuring 15.0 ft * 20.0 ft to a depth of 3.0 in.?324Has a video solution.
Textbook QuestionThe total rate at which power is used by humans worldwide is approximately 15 TW (terawatts). The solar flux averaged over the sunlit half of Earth is 680 W>m2 (assuming no clouds). The area of Earth's disc as seen from the Sun is 1.28 * 1014 m2. The surface area of Earth is approximately 197,000,000 square miles. How much of Earth's surface would we need to cover with solar energy collectors to power the planet for use by all humans? Assume that the solar energy collectors can convert only 10% of the available sunlight into useful power803Has a video solution.
Textbook QuestionThe diameter of a rubidium atom is 495 pm We will consider two different ways of placing the atoms on a surface. In arrangement A, all the atoms are lined up with one another to form a square grid. Arrangement B is called a close-packed arrangement because the atoms sit in the 'depressions' formed by the previous row of atoms: (a) Using arrangement A, how many Rb atoms could be placed on a square surface that is 1.0 cm on a side?208Has a video solution.
Textbook Question(a) Assuming the dimensions of the nucleus and atom shown in Figure 2.10, what fraction of the volume of the atom is taken up by the nucleus?156Has a video solution.
Textbook QuestionVery small semiconductor crystals, composed of approximately 1000 to 10,000 atoms, are called quantum dots. Quantum dots made of the semiconductor CdSe are now being used in electronic reader and tablet displays because they emit light efficiently and in multiple colors, depending on dot size. The density of CdSe is 5.82 g/cm3. (e) If you wanted to make one 6.5-nm dot from multiple 2.5-nm dots, how many 2.5-nm dots would you need, and how many CdSe formula units would be left over, if any?230Has a video solution.
Textbook QuestionA period at the end of sentence written with a graphite pen-cil has a diameter of 1 mm. If the period represented the nucleus, approximately how large is the diameter of the entire atom in units of m?278Has a video solution.
Textbook QuestionPerform each unit conversion. a. 1.4 in to mm b. 116 ft to cm c. 1845 kg to lb d. 815 yd to km180Has a video solution.
Textbook QuestionA 1/4-inch-thick lead sheet is used for protection from medi-cal X rays. If a single lead atom has a diameter 350 pm, how many atoms thick is the lead sheet?265Has a video solution.
Textbook QuestionCarry out the following conversions. (a) How many grams of meat are in a quarter-pound hamburger (0.25 lb)?407Has a video solution.
Textbook QuestionCarry out the following conversions. (b) How tall in meters is the Willis Tower, formerly called the Sears Tower, in Chicago (1454 ft)?187Has a video solution.
Textbook QuestionCarry out the following conversions. (c) How large in square meters is the land area of Australia (2,941,526 mi^2)?217Has a video solution.
Textbook QuestionIn 2009, a team from Northwestern University and Western Washington University reported the preparation of a new 'spongy' material composed of nickel, molybdenum, and sulfur that excels at removing mercury from water. The density of this new material is 0.20 g>cm3, and its surface area is 1242 m2 per gram of material. (b) Calculate the surface area for a 10.0-mg sample of this material.377Has a video solution.
Textbook QuestionPerform each unit conversion. a. 1.4 in to mm b. 116 ft to cm c. 1845 kg to lb d. 815 yd to km242Has a video solution.
Textbook QuestionPerform each unit conversion. a. 1.4 in to mm b. 116 ft to cm c. 1845 kg to lb d. 815 yd to km240Has a video solution.
Textbook QuestionPerform each unit conversion. a. 1.4 in to mm b. 116 ft to cm c. 1845 kg to lb d. 815 yd to km230Has a video solution.
Textbook QuestionA period at the end of sentence written with a graphite pen-cil has a diameter of 1 mm. How many carbon atoms would it take to line up across the period if a single carbon atom has a diameter of 150 pm?373Has a video solution.
Textbook QuestionConvert the following quantities into SI units with the correct number of significant figures. (c) 0.5521 gal304Has a video solution.
Textbook QuestionConvert the following quantities into SI units with the correct number of significant figures. (e) 978.3 yd3154Has a video solution.
Textbook QuestionConvert the following quantities into SI units with the correct number of significant figures. (b) 66.31 lb331Has a video solution.
Textbook QuestionConvert the following quantities into SI units with the correct number of significant figures. (a) 5.4 in.358Has a video solution.
Textbook QuestionConvert the following quantities into SI units with the correct number of significant figures. (d) 65 mi/h279Has a video solution.
Textbook QuestionConvert the following quantities into SI units with the correct number of significant figures. (f) 2.380 mi^2371Has a video solution.
Textbook QuestionA runner wants to run 10.0 km. Her running pace is 7.5 mi per hour. How many minutes must she run?6082Has a video solution.
Textbook QuestionA cyclist rides at an average speed of 18 mi per hour. If she wants to bike 212 km, how long (in hours) must she ride?1694Has a video solution.
Textbook QuestionThe world record for the women's outdoor 20,000-meter run, set in 2000 by Tegla Loroupe, is 1:05:26.6 (seconds are given to the nearest tenth). What was her average speed, expressed in miles per hour with the correct number of significant figures? (Assume that the race distance is accurate to 5 significant figures)256Has a video solution.
Textbook QuestionIn a sunny location, sunlight has a power density of about 1 kW/m2. Photovoltaic solar cells can convert this power into electricity with 15% efficiency. If a typical home uses 385 kWh of electricity per month, how many square meters of solar cells are required to meet its energy requirements? Assume that electricity can be generated from the sunlight for 8 hours per day. ▲ What area of solar cells do you need to power a home?236Has a video solution.
Textbook QuestionIn the United States, the emissions limit for carbon monoxide in motorcycle engine exhaust is 12.0 g of carbon monoxide per kilometer driven. What is this limit expressed in mg per mile with the correct number of significant figures?418Has a video solution.
Textbook QuestionA certain European automobile has a gas mileage of 17 km>L. What is the gas mileage in miles per gallon?464Has a video solution.
Textbook QuestionThe volume of water used for crop irrigation is measured in acre-feet, where 1 acre-foot is the amount of water needed to cover 1 acre of land to a depth of 1 ft. (a) If there are 640 acres per square mile, how many cubic feet of water are in 1 acre-foot? (b) How many acre-feet are in Lake Erie (total volume = 116 mi^3)?441Has a video solution.
Textbook QuestionA gas can holds 5.0 gal of gasoline. Express this quantity in cm3.418Has a video solution.
Textbook QuestionThe height of a horse is usually measured in hands instead of in feet, where 1 hand equals 1/3 ft (exactly). (b) What is the volume in cubic meters of a box measuring 6 * 2.5 * 15 hands560Has a video solution.
Textbook QuestionThe height of a horse is usually measured in hands instead of in feet, where 1 hand equals 1/3 ft (exactly). (a) How tall in centimeters is a horse of 18.6 hands?356Has a video solution.
Textbook QuestionWeights in England are commonly measured in stones, where 1 stone = 14 lb. What is the weight in pounds of a person who weighs 8.65 stones?2140Has a video solution.
Textbook QuestionConcentrations of substances dissolved in solution are often expressed as mass per unit volume. For example, normal human blood has a cholesterol concentration of about 200 mg/100 mL. Express this concentration in the following units. (e) How much total blood cholesterol in grams does a per-son have if the normal blood volume in the body is 5 L?267Has a video solution.
Textbook QuestionThe average U.S. farm occupies 435 acres. How many square miles is this? (1 acre = 43,560 ft2, 1 mile = 5280 ft)556Has a video solution.
Textbook QuestionAdministration of digitalis, a drug used to control atrial fibrilla-tion in heart patients, must be carefully controlled because even a modest overdose can be fatal. To take differences between patients into account, drug dosages are prescribed in terms of mg/kg body weight. Thus, a child and an adult differ greatly in weight, but both receive the same dosage per kilogram of body weight. At a dosage of 20 mg/kg body weight, how many mil-ligrams of digitalis should a 160 lb patient receive?403Has a video solution.
Textbook QuestionTotal U.S. farmland occupies 954 million acres. How many square miles is this? (1 acre = 43,560 ft2, 1 mi = 5280 ft). Total U.S. land area is 3.537 million square miles. What percentage of U.S. land is farmland?1191Has a video solution.
Textbook QuestionAn acetaminophen suspension for infants contains 80 mg> 0.80 mL suspension. The recommended dose is 15 mg>kg body weight. How many mL of this suspension should be given to an infant weighing 14 lb? (Assume two significant figures.)19862Has a video solution.
Textbook QuestionAmong many alternative units that might be considered as a measure of time is the shake rather than the second. Based on the expression 'faster than a shake of a lamb's tail,' we'll define 1 shake as equal to 2.5 * 10-4 s. If a car is traveling at 55 mi/h, what is its speed in cm/shake258Has a video solution.
Textbook QuestionWhich is larger in each pair, and by approximately how much? (d) A centimeter or an inch165Has a video solution.
Textbook QuestionWhich is larger in each pair, and by approximately how much? (b) A mile or a kilometer166Has a video solution.
Textbook QuestionAn ibuprofen suspension for infants contains 100 mg>5.0 mL suspension. The recommended dose is 10 mg>kg body weight. How many mL of this suspension should be given to an infant weighing 18 lb? (Assume two significant figures.)15351Has a video solution.
Textbook QuestionThe density of polystyrene, a plastic commonly used to make CD cases and transparent cups, is 0.037 lbs/in3. Calculate the density in units of g/cm3.628Has a video solution.
Textbook QuestionThere are exactly 60 seconds in a minute, exactly 60 minutes in an hour, exactly 24 hours in a mean solar day, and 365.24 solar days in a solar year. How many seconds are in a solar year? Give your answer with the correct number of significant figures.1929Has a video solution.
Textbook QuestionThe density of polypropylene, a plastic commonly used to make bottle caps, yogurt containers, and carpeting, is 0.55 oz/in3. Calculate the density in units of g/cm3542Has a video solution.
Textbook QuestionA large tanker truck for carrying gasoline has a capacity of 3.4 * 104 L. (a) What is the tanker's capacity in gallons?517Has a video solution.
Textbook QuestionA large tanker truck for carrying gasoline has a capacity of 3.4 * 104 L. (b) If the retail price of gasoline is $3.00 per gallon, what is the value of the truck's full load of gasoline?487Has a video solution.
Textbook QuestionA 1.0-ounce piece of chocolate contains 15 mg of caffeine, and a 6.0-ounce cup of regular coffee contains 105 mg of caffeine. How much chocolate would you have to consume to get as much caffeine as you would from 2.0 cups of coffee?398Has a video solution.
Textbook QuestionA penny has a thickness of approximately 1.0 mm. If you stacked Avogadro's number of pennies one on top of the other on Earth's surface, how far would the stack extend (in km)? [For comparison, the sun is about 150 million km from Earth and the nearest star (Proxima Centauri) is about 40 trillion km from Earth.]659Has a video solution.
Textbook QuestionConsider the stack of pennies in the previous problem. How much money (in dollars) would this represent? If this money were equally distributed among the world's population of 7.0 billion people, how much would each person receive? Would each person be a millionaire? A billionaire? A trillionaire?3241Has a video solution.
Textbook QuestionAnswer the following questions. (a) An old rule of thumb in cooking says: 'A pint's a pound the world around.' What is the density in g/mL of a sub-stance for which 1 pt = 1 lb exactly213Has a video solution.
Textbook QuestionAnswer the following questions. (b) There are exactly 640 acres in 1 square mile. How many square meters are in 1 ac635Has a video solution.
Textbook QuestionA bag of Hershey's Kisses contains the following information: Serving size: 9 pieces = 41 g Calories per serving: 230 Total fat per serving: 13 g (a) The bag contains 2.0 lbs of Hershey's Kisses. How many Kisses are in the bag?549Has a video solution.
Textbook QuestionHydrogen cyanide, HCN, is a poisonous gas. The lethal dose is approximately 300 mg HCN per kilogram of air when inhaled. (c) HCN forms when synthetic fibers containing Orlon® or Acrilan ® burn. Acrilan® has an empirical formula of CH2CHCN, so HCN is 50.9% of the formula by mass. A rug measures 3.5 * 4.5 m and contains 850 g of Acrilan® fibers per square yard of carpet. If the rug burns, will a lethal dose of HCN be generated in the room? Assume that the yield of HCN from the fibers is 20% and that the carpet is 50% consumed.713Has a video solution.
Textbook QuestionThe source of oxygen that drives the internal combustion engine in an automobile is air. Air is a mixture of gases, principally N2179%2 and O2120%2. In the cylinder of an automobile engine, nitrogen can react with oxygen to produce nitric oxide gas, NO. As NO is emitted from the tailpipe of the car, it can react with more oxygen to produce nitrogen dioxide gas. (b) Both nitric oxide and nitrogen dioxide are pollutants that can lead to acid rain and global warming; collectively, they are called 'NOx' gases. In 2009, the United States emitted an estimated 19 million tons of nitrogen dioxide into the atmosphere. How many grams of nitrogen dioxide is this?968Has a video solution.
Textbook QuestionThe value of the euro was recently $1.15 U.S., and the price of 1 liter of gasoline in France is 1.42 euro. What is the price of 1 gallon of gasoline in U.S. dollars in France?387Has a video solution.
Textbook QuestionOcean currents are measured in Sverdrups (sv) where 1 sv = 109 m3/s. The Gulf Stream off the tip of Florida, for instance, has a flow of 35 sv. (a) What is the flow of the Gulf Stream in milliliters per minute?365Has a video solution.
Textbook QuestionOcean currents are measured in Sverdrups (sv) where 1 sv = 109 m3/s. The Gulf Stream off the tip of Florida, for instance, has a flow of 35 sv. (b) What mass of water in the Gulf Stream flows past a given point in 24 hours? The density of seawater is 1.025 g/mL.249Has a video solution.
Textbook QuestionOcean currents are measured in Sverdrups (sv) where 1 sv = 109 m3/s. The Gulf Stream off the tip of Florida, for instance, has a flow of 35 sv. (c) How much time is required for 1 petaliter (PL; 1 PL = 1015 L) of seawater to flow past a given point?506Has a video solution.
Textbook QuestionThe density of iron is 7.86 g>cm3. What is its density in pounds per cubic inch (lb>in3)?18631Has a video solution.
Textbook QuestionThe element gallium (Ga) has the second-largest liquid range of any element, melting at 29.78 °C and boiling at 2204 °C at atmospheric pressure. (a) What is the density of gallium in g/cm3 at 25 °C if a 1 in. cube has a mass of 0.2133 lb?291Has a video solution.
Textbook QuestionThe Toyota Prius, a hybrid electric vehicle, has an EPA gas mileage rating of 52 mi>gal in the city. How many kilometers can the Prius travel on 15 L of gasoline?687Has a video solution.
Textbook QuestionThe Honda Insight, a hybrid electric vehicle, has an EPA gas mileage rating of 41 mi>gal in the city. How many kilometers can the Insight travel on the amount of gasoline that would fit in a soda can? The volume of a soda can is 355 mL.5963Has a video solution.
Textbook QuestionA sample of gaseous neon atoms at atmospheric pressure and 0 °C contains 2.69 * 1022 atoms per liter. The atomic radius of neon is 69 pm. What fraction of the space do the atoms themselves occupy? What does this reveal about the separation between atoms in the gaseous phase?588Has a video solution.
Textbook QuestionThe diameter of a hydrogen atom is 212 pm. Find the length in kilometers of a row of 6.02 * 1023 hydrogen atoms. The diameter of a ping pong ball is 4.0 cm. Find the length in kilometers of a row of 6.02 * 1023 ping pong balls.12771Has a video solution.
Textbook QuestionThe world's record in the 100-m dash is 9.69 s, and in the 100-yd dash it is 9.21 s. Find the speed in mi>hr of the runners who set these records. (Assume three significant figures for 100 m and 100 yd.)469Has a video solution.
Textbook QuestionThe daily recommended intake of calcium for an average adult is 1,000 mg. There is 125 mg of calcium in 100 grams of milk. If a 150 g smoothie contains 75 grams of milk, how many grams of smoothie should an adult consume to meet the daily recommended intake?15342
Textbook QuestionA length of #8 copper wire (radius = 1.63 mm) has a mass of 24.0 kg and a resistance of 2.061 ohm per km (Ω >km). What is the overall resistance of the wire?358Has a video solution.
