Pheromones are compounds secreted by females of many insect species to attract mates. Typically,  1.00  ×  10−8 g  of a pheromone is sufficient to reach all targeted males within a radius of  0.500 mi.  Calculate the density of the pheromone (in grams per liter) in a cylindrical air space having a radius of 0.500 mi and a height of 32.0 ft (volume of a cylinder of radius r and height h is  π r2h). Enter your answer in scientific notation.

Q: Name the SI base units that are important in chemistry,and give the SI units for expressing the…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3 sub-parts. Please resubmit the…

Q: Convert (7.8x10^24) molecules of sodium chloride, NaCl (OR N a C l) to grams of sodium chloride.…

A: To solve this problem first we have to know the molar mass of NaCl. From the molar mass we know…

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A: A) Given : mass of sand = mass of idol And volume of idol = 1.5 L Since mass = density X volume…

Q: A chemist must prepare  550.mL  of  60.0mM aqueous potassium dichromate  K2Cr2O7 working…

A: Dilution is the process of decreasing the concentration of a solute by mixing more solvent. Dilution…

Q: Under certain conditions, the density of dry air is 1.205 g/L. What is the mass of air in a room…

A:

Q: If a sample of unknown substance has a mass of 3.10 kg and a volume of 1.80 L, what is the density…

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Q: What is the density of the metal weight?

A: Mass of empty beaker = 0.1 gTotal mass of system = 0.54 g

Q: High-density lipoprotein (HDL) is a type of cholesterol, sometimes called “good cholesterol,” that…

A: Density is given by the ratio of the mass of the substance to that of the volume.

Q: . A gold brick is 15.24 cm long, 7.62 cm wide weighs 5,690.0 g. What is the height of the brick?

A: Given that: Length of gold brick (l) = 15.24 cm Width (b) = 7.62 cm mass= 5690.0 g   The height of…

Q: A swimming pool has average dimensions of 40 feet by 20 feet by 6.0 feet. Given the density of water…

A: The formula of density is given as follows: Rearranging the terms,it becomes

Q: You are renting a car which is reported to achieve 13.7 km/L. How many miles will you be able to…

A: Given Mileage = 13.7 km/L Volume = 11.0 gallons 1 gallon = 3.785 L 11 gallons = 41.64 L

Q: A jet airplane reaches 768. km/h on a certain flight. How long does it take to cover 323. m? Set the…

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Q: -7 mmol/L mercury(I) chloride (Hg,Cl,) solution to a reaction flask. Calculate the mass in…

A: The amount of substance is usually defined in terms of mole. The mole is the SI unit of the quantity…

Q: 4) For the displacement of the metal, ethanol (d 0.79 g/mL) was mistakenly used in the liquid in the…

A: Density is defined as the mass of the object upon the volume of occupied by the object   density d=…

Q: If your front lawn is 25.0 feet wide and 20.0 feet long, and each square foot of lawn accumulates…

A: Lawn is rectangular which has width = 25.0feet; length = 20.0feet  so Area = length * width…

Q: The speed of light in a vacuum is 2.998*108 m/s. What is its speed in kilometers per hour (km/h)?

A: It is given that speed of light in vacuum is = 2.998×108 m/s

Q: Ultrapure silicon is used to make solid-state devices, such as computer chips.  If the volume of a…

A:

Q: If the density of gas is 0.702 g/mL, what is the mass in grams of 5.0 x 101 mL of gasoline?

A: Given, If the density of gas is 0.702 g/mL,  The mass in grams of 5.0 x 101 mL of gasoline is :

Q: What is the volume (in units of m^3) and density (in units of g/mL) of a 325g rectangular block of…

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Q: A small airplane takes on 312 L of fuel. If the density of the fuel is 0.821 g/ mL, what mass of…

A:

Q: A waterbed filled with water has the dimensions 8.0 ft x 7.0 ft x 0.75 ft. Taking the density of…

A: Given: The dimensions of the waterbed = 8.0 ft × 7.0 ft × 0.75 ft The density of water = 1.00 g/cm3…

Q: The output of a plant is 4335 pounds of ball bearings per work-week (a work week = five days). If…

A: Given: Mass of each ball bearing = 0.0113 g Total mass of ball bearings formed in 5 days = 4335…

Q: If 1 mile = 1.609 km and 1 gallon = 3.7854 L, what is 35.0mpg (miles per gallon) in kilometers per…

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Q: The density of the organic compound benzene is 0.879 g/mL.Calculate the mass in grams of 1.00 qt of…

A: Given information,    Density of benzene is 0.879 g/mL.    Volume of benzene is 1.00 quart

Q: If a raindrop weighs 0.52 mg on average and 5.1x10^5rain-drops fall on a lawn every minute, what…

A: Rain drop weights =0.52mg Rain drops fall rate =5.1x105 rain drops minute Mass of water drops per…

Q: A jet airplane reaches 887. km/h on a certain flight. How long does it take to cover 454. m? Set the…

A:

Q: Catalytic converters are used in automobiles to convert harmful gaseous substances in the exhaust to…

A:

Q: 2- Suppose that a liquid is 11 times denser than water. If you were to sip this liquid on the top of…

A:

Q: A star is estimated to have a mass of 2 x 10 kg. Assuming it to be a sphere of avera radius 7.0 x…

A: Given data: Mass of star = 2 * 1036 kg, Radius = 7.0 * 105 km The star is assumed as circle thus,…

Q: To determine the density of an irregularly-shaped solid, a student immersed the object in 25.0 mL of…

A: To solve this problem we have to find the volume of object and then we will able to calculate the…

Q: The density of Solid A is 2.70 g/cm3 and that of Solid B is 3.87 g/cm3 . If 1.00 g of each solid is…

A:

Q: A pheromone is a type of volatile compound produced by a variety of insect species for chemical…

A:

Q: Given that there are 220.0 yards in 1.000 furlong, 2.54 cm in 1.00 inches, and two weeks in a…

A:

Q: The price and density of gold are $57.70 g-1 and 0.698 lb.in-3, respectively. How much would a cube…

A: Given :  Price of gold = $57.70 per gm  Density of gold = 0.698 lb in-3  Length of cube = 1 m = 100…

Q: (a) the length of a soccer field, 120. m (three significant figures), to feet ft (b) the height of…

A: since,1 m=3.28 ft1 inch=2.54 cm1 short tons=907.185 kg1 kg=2.2046 lb1 oz=28349.5 mg

Q: 3. An Erlenmeyer flask is placed on an analytical balance giving a reading of 124.2218 g. Exactly…

A: Given: Mass of empty flask = 124.2218 g. Volume of water added = 25.00 mL. And mass of flask with…

Q: The speed of light is (2.998e8m/s) How far does light travel in 9.0μs? Set the math up. But don't do…

A: Given,Speed of light = 2.998 × 108 m/sTime = 9.0 μsFirstly, let us convert 9.0 μs to s using…

Q: The density of pure silver is 10.5 g/cm3  at 20 degrees Celsius. If 5.25 g of pure silver pellets is…

A: The volume of silver is calculated from the given density (10.5 g/cm3) and mass (5.25 g) of silver…

Q: Molecular distances are given in nano-meters, where 1nm is equivalent to 1 x 10-9 meter. If the…

A:

Q: You are renting a car which is reported to achieve 12.5 km/L. How many miles will you be able to…

A: Given : car has an average rate of fuel consumption = 12.5 Km/L hence it means, per litre of the…

Q: Azelastine hydrochloride is an antihistamine nasal spray. A standard-size container holds one fluid…

A:

Q: At 25.0 ºC the density of dichloromethane is 1.325 x 103 kg / m3. If 10.0g of dichloromethane at…

A: Density is defined as “given mass of a substance per unit volume of the container it is placed in”.…

Q: Blood alcohol content is a measure of alcohol in the blood as a percentage. It is calculated in…

A: A BAC of 0.08% means that 0.08 g of alcohol is present in 100 mL of blood  So the required…

Q: You are renting a car which is reported to achieve 10.1 km/l how many miles will you be able to…

A: Conversion of units: 1 gallon = 3.785 L 1 km = 0.62 mile

Q: A car travels at 55 mi/hmi/h and gets 12 km/Lkm/L of gasoline.   How many gallons of gasoline are…

A: We have to calculate the Gallons of gasoline needed.

Q: Suppose that an in-ground swimming pool has a length and width of 22.0 ft and 39.5 ft, respectively,…

A:

Q: Suppose you are trying to find the volume of a box based on the given measurements for the length,…

A: Given,length, l = 2.20 inwidth, w = 3.71 inheight, h = 10.4 in + 1 in

Q: If a sample of unknown substance has a mass of 3.50 kg and a volume of 1.30 L, what is the density…

A: Given : Mass of substance = 3.50 Kg = 3500 g…

Q: In normal whole blood there are about 5.4 x 10^9 red cells per milliliter. The volume of a red cell…

A: Given:- In normal whole blood there are about 5.4 x 10^9 red cells per milliliter. The volume of a…

Q: block of lead has dimensions of 4.50 cm by 5.20 cm by 6.00 cm . The block weighs 1591g. From this…

A: Given that: Mass of lead block = 1591 g  Dimension of lead block = 4.50cm×5.20cm×6.00cm So, volume…