A 40-lb container of peat moss measures 14 * 20 * 30 in. A40-lb container of topsoil has a volume of 1.9 gal. (a) Calculatethe average densities of peat moss and topsoil in units ofg>cm3. Would it be correct to say that peat moss is “lighter”than topsoil? (b) How many bags of peat moss are needed tocover an area measuring 15.0 ft * 20.0 ft to a depth of 3.0 in.?

Q: The speed of light is about 3.00 x 108 m/s. How far can light travel in two days (72.0 hours)? Your…

A: We know that., 1 hour = 60 minute and, 1 minute = 60 second Therefore 1 hour = 60×60 = 3600 second…

Q: Vancomycin hydrochloride is to be administered to a 2-year-old patient weighing 30 lb for the…

A: Given information: Weight of patient = 30 lb Dosage = 5 mg/kg four times a day

Q: Administration of digitalis, a drug used to control atrial fibrillation in heart patients, must be…

A:

Q: If you have a mixture of 10 lb. sunflower seeds which cost 32¢ per pound and 16 lb. of cracked corn…

A: #Q.1: The mixture has 10 lb sunflower seeds and 16 lb cracked corn. Cost of sunflower seeds = 32¢ /…

Q: A 40-lb container of peat moss measures 14 x 20 x 30 in. A40-lb container of topsoil has a volume of…

A:

Q: The density of air at ordinary atmospheric pressure and25 °C is 1.19 g/L. What is the mass, in…

A: When density of any specific matter (gas, solid, or liquid) is provided along with its occupied…

Q: Convert 6.4 x 10^-28 j-s/ kg to erg- min /lb. Note that “j” means “ joule” - it is one of the units…

A: 6.4*10-28 j-s/Kg to erg-min/lb Conversion required : 1 J = 107 ergs 60 sec = 1 min => 1 sec =…

Q: Part A An electron acquires 6 60x10-16 J of kinetic energy when it is accelerated by an electric…

A: Kinetic Energy of electron = 6.60 × 10-16 J Charge on electron = 1 Coulomb = 1.60 × 10-19 C

Q: An object weighing 1.840 kg has a volume of 0.0015 m3. What is the density of the object in g/cm3?

A: Given values are,  Mass= 1.840 kg =1840 g Volume =0.0015 m3 = 1500 cm3  Density =?

Q: a small block of a metal with a mass of 223.1g when submerged in a beaker containing water, the…

A: Mass of metal = 223.1 g Density of metal = 7.41 g/cm3 = 7.41 g/mL

Q: The average density of whole milk is 1.034g cm^-3. What is its density in lb gal^-1?

A: Conversion required is,

Q: A student performs an experiment to determine the density of a sugar solution. She obtains the…

A: Accurate measurement :- A measurement is said to be accurate if it is very close to the actual…

Q: A copper refinery produces a copper ingot weighing 150 lb.If the copper is drawn into wire whose…

A: 150 lb= 150*0.45 kgs =67.5 kg= 67500grams density of copper=8.94g/cm3 Volume of copper present=…

Q: What is the density (in g/mL) of a cube that has equal sides of 12 inches and weighs 491 pounds?

A:

Q: An asteroid has a diameter of 501.08 mi, and a mass of 1.007 x 10 21 lbs. What is it's density in…

A: Radius can be obtained by dividing the diameter with 2. Then, diameter in miles can be converted to…

Q: The density of mercury is 13.6g/ cm^3. What volume (in quarts) is occupied by 101 g of Hg?

A: As density is the ratio of mass and volume of the substance which is represented by equation 1 in…

Q: What is the density of lead (in g/cm3 ) if a rectangular bar measuring 0.500 cm in height, 1.55 cm…

A: Volume of the box = height x width x length = 0.500 cm x 1.55 cm x 25 cm = 19.375 cm3.

Q: t takes a runner 37 minutes to complete a 10 km course. What is his/her average speed in miles per…

A:

Q: The density (d) of a substance is an intensive property that is defined as the ratio of its mass (m)…

A: Extensive properties are those that depend on the amount of matter present in the substance.…

Q: What is the mass, in pounds, of 8.32 quarts of olive oil, which has a density of 3.45 kg/gal?

A: Given: Volume of olive oil = 8.32 quarts And density of olive oil = 3.45 Kg/gal. Since 1 gal = 4…

Q: ball of iron weighs 55.265 g and measures 3.00 cm in diameter. What is the density of the iron ball?…

A: The question is based on the concept of physical chemistry. We have to calculate density of the…

Q: If a large marshmallow has a volume of 3.00 in3in3 and density of 0.242 g/cm3g/cm3, how much would…

A: Given :-  density = 0.242 g/cm3  volume = 3.00 in3  To be calculated :-  mass (in grams)

Q: You are assigned the task of separating a desired granular materialwith a density of 3.62 g/cm3 from…

A: Given: Density of desired material = 3.62 g/cm3 Density of undesired material = 2.04 g/cm3.

Q: The density of whole human blood in a healthy individualis 1.04 g/mL. Given that the density of…

A: Given data contains, Density of whole human blood is 1.04 g/mL. Density of water is 0.993 g/mL.

Q: What is the mass of a substance that has a densityof 11.6 g/cm3 and a volume of 35 cm?

A: All matter can be classified as solid, liquid and gases mainly. In these physical states of matter,…

Q: A student performs an experiment to determine the density of a sugar solution. She obtains the…

A: In measurement of a set, accuracy is closeness of the measurements to a specific value, while…

Q: What is the density in g/cm^3 of 255g of solid metal with the volume of 41cm^3?

A:

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 cube of osmium metal 1.500 cm on a side has a mass of 76.31 g at 25 ∘C What is its density in…

A: Formula to be used: Density = mass/volume Volume of a cube = (length of side)3 Given that: Mas of…

Q: The density of silver is 10.5 g/cm³. What is the mass (in kilograms) of a cube of silver that…

A: Since the density of any solid is defined as the mass of the solid present per unit of volume Hence…

Q: Express the result of the following calculation in scientific notation: 301 cm x 439 cm 1.32 x 10°…

A:

Q: The pediatric dose of cefixime is 30 mg/kg/day. If a child was given a daily dose 2 teaspoons of…

A:

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: A rectangular block mesures 2.00 cm by 10.00cm by 4.00cm and has a mass of 0.839kg. what is the…

A: It is given that;Length of the rectangular block = 2.00 cmBreadth of the rectangular block = 10.00…

Q: Heparin is available in a 10 mL vial containing 2500 units/mL.  A heparin infusion is prepared by…

A: Since one pound (lbs) is equal to 0.454 kg, 154 pound is equivalent to 69.92 kg. Number of heparin…

Q: Titanium is used in airplane bodies because it is strong and light. It has a density of 4.55…

A: Diameter of cylinder is double of its radius. So,by knowing the radius of the cylinder,its diameter…

Q: (a) Read the following description of the element zinc andindicate which are physical properties and…

A: Chemical property- The property in which chemical reactions are happened called as chemical…

Q: The world record for the hundred meter dash is 9.58 s. What is the corresponding average speed in…

A:

Q: A copper refinery produces a copper ingot weighing 150 lb.If the copper is drawn into wire whose…

A: Given that, Weight of copper ingot=150 lb=67.5 kg (since 1 lb=0.45 kg) 67.5 kg=67500 g (since 1…

Q: A gasoline station in Manila, Philippines, charges 38.46 pesos per liter f unleaded gasoline at a…

A: 1 L unleaded petrol costs 38.46 pesos(PHP). 1 USD is equivalent to 47.15 PHP. Capacity of the tank…

Q: A room has a width of 14.1 feet, a length of 15.5 feet, and a ceiling height of 12.0 ft. 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: A flask weighs 64.25 g when empty and weighs 91.75 g when filled with water at 20oC. However, when…

A: The question is based on the concept of density and volume calculations. density is defined as…

Q: Suppose an astronaut has landed on Mars. Fully equipped, the astronaut has a mass of 132 kg, and…

A: The weight of a system is given by mg, where m is the mass of the system and g is the g is…

Q: a 400 troy ounce gold bar weighs 27.428 pounds, or 12.4441 kg. it measures 7 inches by 3 5/8 inches…

A: Mass of gold bar = 27.428 pounds or 12.441 kg or 12441 g

Q: A thief plans to steal a gold sphere with a radius of 28.9 cmfrom a museum. If the gold has a…

A: The radius of the gold sphere = 28.9 cm The volume of the sphere can be calculated from radius as:

Q: B. Perform the following calculations, and give the correct number of significant figures in the…

A:

Q: A thief plans to steal a gold sphere with a radius of 28.9 cmfrom a museum. If the gold has a…

A: Given: Radius is 28.9 cm Density is 19.3 g/cm3

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.