A thief plans to steal a gold sphere with a radius of 28.1 cm from museum. If the gold has a density of 19.3 g/cm, what is the mass of the sphere in pounds? [The volume of a sphere is V = (4/3)ar³ ] Express your answer in pounds to three significant figures.

Q: A wooden block, 10" x 10" x 2.0", weighs 3 ib 6 oz.  What is the density of the wood in ounces per…

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Q: The density of butanol is 0.8098 g/mL. To the proper number of significant figures, what is the…

A: Mathematically, density ρ is expressed as the ratio of mass (m) to volume (V). The given value of…

Q: What is the density of an object that has a mass of 33.7 grams if it were placed in a graduated…

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Q: A piece of black onyx is a rectangular solid measuring 5.00 cm by 5.00 cm by 2.50 mm. What is the…

A: Given that:                      Length of rectangular solid = 5.00 cm                     Width of…

Q: The density of iron is 7.87 g/mL. What is the mass of a 2.00 cm x 4.00 cm x 1.00 cm block of iron?…

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Q: If the density of gold is 19.3 g/mL, what is its specific gravity?

A: Specific gravity:  Specific gravity can be defined as the ratio of density of a substance to the…

Q: The density of lead is 1.134 x 104 kg/m3.  If a student determines the mass of a piece of lead to be…

A: Density of a substance is given by the ratio of mass and volume. Density = MassVolume It is the mass…

Q: Consider the jar of jelly beans in the photo. To get an estimate of the number of beans in the jar…

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Q: A rectangular block of copper alloy has a mass of 1896 g. The dimensions of the block are 8.4 cm by…

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Q: A student is determining the density of unknown metal with a mass of 627.0 g. The student partially…

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Q: 2. The volume of a block-shaped object can be calculated using the formula: volume = length X width…

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Q: A rectangular piece of platinum has dimensions of 3.50 cm x 2.16 cm x 1.08 cm and weighs 175.5 g.…

A: Formula: Density ( D) = Mass (M)  \ Volume (V)

Q: A meteor has a volume of 9235 ft3 , what is the mass in kg of the meteor if the density is 0.92…

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Q: A wooden object has a mass of 10.782 g and occupies a volume of 13.72 mL. What is the density of the…

A: For division: In any problem, the minimum number of significant figures in any number is used to…

Q: b) One sphere has a radius of 5.10 cm; another has a radius of 5.00 cm. What is the difference in…

A: Calculate the difference in volumes of two spheres in cubic centimeters. Given: Radius of one sphere…

Q: If a 120-lb woman uses fi ve 2.0-lb lead weights in order to submerge during a recent scuba dive,…

A: The density of an object is the ratio of its mass to its volume. The density is an intensive…

Q: In determining the density of a rectangular metal bar,a student made the following measurements:…

A: The density of the metal has to be given, Given data:  length=8.53 cm width,=2.4 cm height,=1.0 cm…

Q: If an object has a density of 4.99 g/cm3, what is its density in units of kg/m3?

A: We will convert units from g/cm3 to kg/ m3 using unit conversion factor.

Q: Given that the air in a building has a density of 1.184 × 10-3 g/cm3, how much does the air weigh…

A: room is rectangular in shape  width = 30.0 feet and 7.0 inches = 30.584 feet  length =41.0 feet…

Q: A bakery measured the mass of a whole cake as 0.870 kg. A customer bought one slice of the cake and…

A: Rule for Significant figures (SF) in mathematical operations:(1) Addition and Substraction round by…

Q: A student measures 49.2 mL of concentrated nitric acid, which has a density of 1.53 g/mL. Part A…

A: Density ( d ) :- Density is defined as the ratio of mass and volume of solution. Density(d) = mass…

Q: A hectacre (1.0000 x 104 m2) is a metric unit of area analogous to an acre. How many square feet are…

A: 1 feet consists of 0.3048 m and 1 square feet consists of 0.093 m2. 1 hectare consists of 10000 m2 5…

Q: The density of silver is 10.5 g/cm³. What is the mass of a silver bar (in gms) that measures 0.1000…

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Q: The density of diethyl ether, a common organic solvent, is 0.706 g/mL.  What is the mass, in g, of…

A: Given that : Density of diethyl ether = 0.706 g/mL Volume of diethyl ether = 0.62 L

Q: What is the density of lithium metal in g/cm3, if a cube measuring 0.82 cm x 1.45 cm x 1.25 cm has a…

A: Mass of a cube = 0.794 g  According to given values ,Let's assume :  Length of a cube = 0.82 cm…

Q: A block of wood 22.0 cm x 180 mm x 0.057 m has a mass of 1.426 x 10^3 grams.  What is the volume of…

A: Calculate the volume of wood block in cm3:

Q: The total amount of fresh water on earth is estimated to be 3.73 x 108 km3.  What is this volume in…

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Q: what is the density of a peice of wood that weighs 78 mg and displaces 407 mL of water?

A: The formula used to calculate density is,

Q: A house has an area of 221 m2m2. What is its area in each unit? Express the area in square…

A: The space occupied by a surface of object or a flat shape is known as area.

Q: A chemist weighs herself on a scale and records a mass of 65.1 kg. She removes a calculator and…

A: Given : Mass of chemist with calculator = 65.1 Kg = 65.1 X 103 g                   (Since 1 Kg =…

Q: A rectangular solid measures 1.0 m by 5.6 cm by 2.1 dm. Express its volume in cubic meters, liters,…

A: The volume of the rectangle can be calculated by the formula,Volume (V) = length (l) × width (b) ×…

Q: Lead has a density of 11.4 g/cm3. What is the mass in grams of a cube of lead that has the…

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Q: A nurse practitioner prepares an injection of promethazine, an antihistamine used to treat allergic…

A: Given: Concentration of stock bottle = 20 mg/mL. Dose has given = 15.0 mg

Q: In liposuction, a doctor removes fat deposits from a person's body. If body fat has a density of…

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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: A student is determining the density of an unknown metal with a mass of 87.8 g. The student…

A: Given: The mass of an unknown metal, m = 87.8 g The vol. of water in the graduated cylinder without…

Q: Calculate the density of a metal object with a volume of 20.2 cm3 and a mass of 159 g The object is…

A: Given: The mass of the object, m=159 g  The volume of the object, V=20.2 cm3 The density of the…

Q: What is the volume, in milliliters, of 6.60 g of acetone?

A: Density = mass ÷ volume  So, volume = mass ÷ density

Q: Consider the following conversion factors: (i) 1000 m = 1 km, (ii) 1 mL = 1 cm3,(iii) 1 lb = 453.59…

A: 1 km = 1000 m The number of significant figures in 1 of 1 km is 1 and the number of significant…

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: if your cylinder measured 1.20 cm tall and 0.65 cm in diameter and the mass was 13.4557 g, how many…

A: Given: the height of the cylinder =1.20 cm the diameter = 0.65cm. the mass = 13.4557. The formula…

Q: A block metal has a volume of 13.4in^3 and weighs 5.22lb. What is its density in grams per cubic…

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Q: What is the area of a piece of metal foil that measures 43.9 cm by 29.21 cm? Express the answer to…

A: Since we know for a rectangular foil area = length × breadth  Here , Length = 43.9 cm…

Q: If a monolayer of stearic acid has a mass of 2.5*10^-5 g and occupies a surface area of 82 cm^2,…

A: Volume = Mass/density Height = Volume/surface area Given that: Mass of stearic acid =2.5 x 10-5 g…

Q: If a box measures 78.4 cm x 1.34 m x 654 mm, what is the volume of the box in cubic centimeters?

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Q: If the density of baking soda is 2.1 g/mL, how many grams of baking soda are present in 5.0 mL (the…

A: the product must contain 2 significant figure as bot of the multiplicand have 2 significant figure

Q: A cape is designed for Lady Gaga's covered with 4450 sequins. If a sequin has a volume of 0.0275…

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Q: the radius of a neon atom is 6.9 x 10 ^-2 nm, and its mass is 3.35 x 10^-17 micrograms. what is the…

A: 6.9 * 10-2 nm = 6.9 * 10-12  m  We know that formula of volume of sphere  = 4/3 πr3  As 1 meter =…

Q: If your piper uses 89 drops of stearic acid/hexane solution to add 1.28 mL to a graduated cylinder…

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Q: A chemistry student needs 35.0 mL of dimethyl sulfoxide for an experiment. By consulting the CRC…

A: Given, volume of dimethyl sulfoxide = 35.0 mL  1 cm3 = 1 mL  35.0 cm3 = 35.0 mL  Density of dimethyl…

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.