Chemistry Chemistry Practice Problems Solutions Library

# Density Solutions Library

Access 182 Density video and text solutions to help you complete your homework. Need to revisit the concept? Watch our Density learn videos.

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182 solutions

Density

#### Q. What is the volume of a sample of NaCl if its mass is 98.5 g? (density of NaCl = 2.16 g/mL)a. 213 mLb. 0.0219 mLc. 27.1 mLd. 1.69 mLe. 45.6 mL

Solved • Feb 5, 2021

Density

#### Q. Calculate the mass of lead (d = 11.4 g/mL) that has the same volume as a 300.0 g block of aluminum (d = 2.70 g/mL)

Solved • Feb 4, 2021

Density

#### Q. A student wants to measure out 75.0 g of methanol, but doesn't have access to a balance. However, he does have a graduated cylinder, so what volume...

Solved • Jan 27, 2021

Density

#### Q. Part A. By varying the mass and volume parameters, determine how the density is affected by the following changes.a. Increasing the mass while keep...

Solved • Jul 1, 2020

Density

#### Q. Part A. To save time you can approximate the initial volume of water to ±1 mL and the initial mass of the solid to ±1 g . For example, if you are a...

Solved • Jun 30, 2020

Density

#### Q. A particular brand of gasoline has a density of 0.737 g/ mL at 25 °C. How many grams of this gasoline would fill a 15.0 gal tank (1 US gal = 3.78 L...

Solved • Jun 30, 2020

Density

#### Q. Ethyl chloride is sold as a liquid under pressure for use as a local skin anesthetic. Ethyl chloride boils at 12 °C at atmospheric pressure. When t...

Solved • Jun 29, 2020

Density

#### Q. How can density be used to identify substances?

Solved • Jun 16, 2020

Density

#### Q. Isopropyl alcohol has a density of 0.79 g/mL. How many mL of isopropyl alcohol does it take to get 35.0 grams?

Solved • Mar 18, 2020

Density

#### Q. Butane (C4H10 ) is the liquid fuel in lighters. How many grams of carbon are present within a lighter containing 7.25 mL of butane? (The density of...

Solved • Mar 17, 2020

Density

#### Q. Determine the volume of hexane that contains 5.33 x 10 22 molecules of hexane. The density of hexane is 0.6548 g/mL and its molar mass is 86.17 g/m...

Solved • Sep 30, 2019

Density

#### Q. Determine the mass of an object that has a volume of 88.6 mL and a density of 9.77 g/mL.A. 298 gB. 1100 gC. 907 gD. 568 gE. 866 g

Solved • Sep 15, 2019

Density

#### Q. The density of silver is 10.5 g/cm3. If a piece of silver occupies a volume of 63.1 cm3, what is the mass (g) of the piece of silver?A. 663B. 0.445...

Solved • Sep 13, 2019

Density

#### Q. Determine the mass of an object that has a volume of 88.6 mL and a density of 7.77 g/mL.A) 80.8 g B) 11.4 g C) 688 g D) 0.0877 g E) 96.4 g

Solved • Sep 12, 2019

Density

#### Q. What is the mass of 62.0 mL of ethanol? The density of ethanol at room temperature = 0.789 g/mL?

Solved • Aug 7, 2019

Density

#### Q. Benzoic acid, C6H5COOH, melts at 122 oC. The density in the liquid state at 130 oC is 1.08 g/cm3. The density of solid benzoic acid at 15 oC is 1.2...

Solved • Nov 27, 2018

Density

#### Q. Benzoic acid, C6H5COOH, melts at 122 oC. The density in the liquid state at 130 oC is 1.08 g/cm3. The density of solid benzoic acid at 15 oC is 1.2...

Solved • Nov 27, 2018

Density

#### Q. Carbon dioxide, which is recognized as the major contributor to global warming as a "greenhouse gas," is formed when fossil fuels are combusted, as...

Solved • Oct 31, 2018

Density

#### Q. The density of liquid NH3 is 0.64 g/mL; the density of gaseous NH3 at STP is 0.0007 g/mL. Explain the difference between the densities of these two...

Solved • Oct 30, 2018

Density

#### Q. Because zinc has nearly the same atomic radius as copper (d = 8.95 g/cm3 ), zinc atoms substitute for some copper atoms in the many types of brass....

Solved • Oct 30, 2018

Density

#### Q. A pure diamond has a density of 3.52 g/cm3. Set up a dimensional-analysis equation to find the volume (cm3) of the Hope Diamond that weighs 44.4 ca...

Solved • Oct 25, 2018

Density

#### Q. Lignum vitae is a hard, durable, and extremely dense wood used to make ship bearings. A sphere of this wood with a diameter of 7.61 cm has a mass o...

Solved • Oct 25, 2018

Density

#### Q. Lignum vitae is a hard, durable, and extremely dense wood used to make ship bearings. A sphere of this wood with a diameter of 7.61 cm has a mass o...

Solved • Oct 25, 2018

Density

#### Q. What is the density of glass in g/cm3 if a sample weighing 27.94 g has a volume of 11.81 cm3 ?

Solved • Oct 25, 2018

Density

#### Q. Aspirin has a density of 1.40 g/cm3.What is the volume (in cubic centimeters) of an aspirin tablet weighing 2.6×102 mg ?

Solved • Oct 25, 2018

Density

#### Q. A bag of Hersheys Kisses contains the following information:Serving size: 9pieces= 41gramsCalories per serving: 230.Total fat per serving: 13 gThe ...

Solved • Oct 25, 2018

Density

#### Q. More sulfuric acid (density = 1.8302 g/cm3) is produced than any other chemical-approximately 3.6 x 1011 lb/yr worldwide.What is the volume of this...

Solved • Oct 25, 2018

Density

#### Q. Which block in the following drawing of a balance is more dense, red or green?

Solved • Oct 25, 2018

Density

#### Q. The following cylinder contains three liquids that do not mix with one another:water (density=1.0g/mL),vegetable oil (density=0.93g/mL),and mercury...

Solved • Oct 25, 2018

Density

#### Q. Chloroform, a substance once used as an anesthetic, has a density of 1.483 g/mL at 20 oC.How many milliliters would you use if you needed 8.03 g ?

Solved • Oct 25, 2018

Density

#### Q. Consider the two spheres shown here, one made of silver and the other of aluminum.What is the mass of the aluminum sphere in kg?

Solved • Oct 25, 2018

Density

#### Q. Consider the two spheres shown here, one made of silver and the other of aluminum.What is the mass of the silver sphere in kg?

Solved • Oct 25, 2018

Density

#### Q. Platinum, Pt, is one of the rarest metals. Worldwide annual production is only about 130 tons.Platinum has a density of 21.4 g/cm3. If thieves were...

Solved • Oct 25, 2018

Density

#### Q. To identify a liquid substance, a student determined its density. Using a graduated cylinder, she measured out a 45-mL sample of the substance. She...

Solved • Oct 25, 2018

Density

#### Q. To identify a liquid substance, a student determined its density. Using a graduated cylinder, she measured out a 45-mL sample of the substance. She...

Solved • Oct 25, 2018

Density

#### Q. To identify a liquid substance, a student determined its density. Using a graduated cylinder, she measured out a 45-mL sample of the substance. She...

Solved • Oct 25, 2018

Density

#### Q. To identify a liquid substance, a student determined its density. Using a graduated cylinder, she measured out a 45-mL sample of the substance. She...

Solved • Oct 25, 2018

Density

#### Q. Silicon for computer chips is grown in large cylinders called “boules” that are 300 mm in diameter and 2 m in length, as shown. The density of sili...

Solved • Oct 25, 2018

Density

#### Q. In 2009, a team from Northwestern University and Western Washington University reported the preparation of a new "spongy" material composed of nick...

Solved • Oct 25, 2018

Density

#### Q. Automobile batteries contain sulfuric acid, which is commonly referred to as "battery acid".Calculate the number of grams of sulfuric acid in 1 gal...

Solved • Oct 25, 2018

Density

#### Q. A 40-lb container of topsoil has a volume of 1.9 gal{ m gal}.Calculate the average density of topsoil in units of g/cm3.

Solved • Oct 25, 2018

Density

#### Q. Two spheres of equal volume are placed on the scales as shown.Which one is more dense?

Solved • Oct 25, 2018

Density

#### Q. The liquid substances mercury (density = 13.6 g/mL), water (1.00 g/mL), and cyclohexane (0.778 g/mL) do not form a solution when mixed; instead, th...

Solved • Oct 25, 2018

Density

#### Q. Water has a density of 0.997 g/cm3 at 25 oC; ice has a density of 0.917 g/cm3 at  -10 oC.If a soft-drink bottle whose volume is 1.60 L is completel...

Solved • Oct 25, 2018

Density

#### Q. Water has a density of 0.997 g/cm3 at 25 oC; ice has a density of 0.917 g/cm3 at  -10 oC.If a soft drink bottle whose volume is 1.50L is completely...

Solved • Oct 25, 2018

Density

#### Q. Gold is alloyed (mixed) with other metals to increase its hardness in making jewelry.Consider a piece of gold jewelry that weighs 9.60 g and has a ...

Solved • Oct 25, 2018

Density

#### Q. Gold is alloyed (mixed) with other metals to increase its hardness in making jewelry.(a) Consider a piece of gold jewelry that weighs 9.85 g and ha...

Solved • Oct 25, 2018

Density

#### Q. You are assigned the task of separating a desired granular material, with a density of 3.62 g/cm3, from an undesired granular material that has a d...

Solved • Oct 25, 2018

Density

#### Q. An individual suffering from a high cholesterol level in her blood has 245 mg of cholesterol per 100 mL of blood. If the total blood volume of the ...

Solved • Oct 25, 2018

Density

#### Q. The density of air at ordinary atmospheric pressure and 25 oC is 1.19 g/L. What is the mass, in kilograms, of the air in a room that measures 13.5 ...

Solved • Oct 25, 2018

Density

#### Q. The density of benzene at 15 oC is 0.8787 g/mL. Calculate the mass of 0.1500 L of benzene at this temperature.

Solved • Oct 25, 2018

Density

#### Q. After the label fell off a bottle containing a clear liquid believed to be benzene, a chemist measured the density of the liquid to verify its iden...

Solved • Oct 25, 2018

Density

#### Q. An experiment requires 16.0 g of cyclohexane, which has a density of 0.7781 g/mL at 25oC. What volume of cyclohexane should be used?

Solved • Oct 25, 2018

Density

#### Q. Three spheres of equal volume are composed of aluminum (density = 2.70 g/cm3), silver (density = 10.49 g/cm3), and nickel (density = 8.90 g/cm3). L...

Solved • Oct 25, 2018

Density

#### Q. Three cubes of equal mass are composed of gold (density = 19.32 g/cm3), platinum (density = 21.45 g/cm3), and lead (density = 11.35 g/cm3). List th...

Solved • Oct 25, 2018

Density

#### Q. A sample of tetrachloroethylene, a liquid used in dry cleaning that is being phased out because of its potential to cause cancer, has a mass of 40....

Solved • Oct 25, 2018

Density

#### Q. Will tetrachloroethylene float on water? (Materials that are less dense than water will float.)

Solved • Oct 25, 2018

Density

#### Q. Carbon dioxide (CO2) is a gas at room temperature and pressure. However, carbon dioxide can be put under pressure to become a "supercritical fluid"...

Solved • Oct 25, 2018

Density

#### Q. A flask containing 7.50 mL of a liquid weighs 168.1 g with the liquid in the flask and 160.1 g when empty.Calculate the density of the liquid in g/...

Solved • Oct 25, 2018

Density

#### Q. A flask containing 15.0 mL of a liquid weighs 128.1 g with the liquid in the flask and 120.1 g when empty.Calculate the density of the liquid in g/...

Solved • Oct 25, 2018

Density

#### Q. A drop of gasoline has a mass of 25 mg and a density of 0.741 g/cm3 . What is its volume in cubic centimeters?

Solved • Oct 25, 2018

Density

#### Q. Backpackers often use canisters of white gas to fuel a cooking stove’s burner. If one canister contains 1.75 L of white gas, and the density of the...

Solved • Oct 25, 2018

Density

#### Q. Is this ring genuine? (Platinum has a density of 21.4 g/cm3.)

Solved • Oct 25, 2018

Density

#### Q. A woman buys a platinum ring that has a mass of 4.23 g and a volume of 0.198 cm3 . Calculate the density of the ring.

Solved • Oct 25, 2018

Density

#### Q. Acetone (nail polish remover) has a density of 0.7857 g/cm3.What is the mass, in grams, of 28.62 mL of acetone?

Solved • Oct 25, 2018

Density

#### Q. Acetone (nail polish remover) has a density of 0.7857 g/cm3.What is the volume, in milliliters, of 6.60 g of acetone?

Solved • Oct 25, 2018

Density

#### Q. A new penny has a mass of 2.49 g and a volume of 0.349 cm3.Is the penny made of pure copper?

Solved • Oct 25, 2018

Density

#### Q. Ethylene glycol (antifreeze) has a density of 1.11 g/cm3.What is the mass in g of 426 mL of ethylene glycol?

Solved • Oct 25, 2018

Density

#### Q. Ethylene glycol (antifreeze) has a density of 1.11 g/cm3.What is the volume in L of 4.1 kg of ethylene glycol?

Solved • Oct 25, 2018

Density

#### Q. Three samples, each of a different substance, are weighed and their volume is measured. The results are tabulated below. List the substances in ord...

Solved • Oct 25, 2018

Density

#### Q. Section 1.7 showed that in 1997 Los Angeles County air had carbon monoxide (CO) levels of 15.0 ppm. An average human inhales about 0.50 L of air pe...

Solved • Oct 25, 2018

Density

#### Q. Nanotechnology, the field of trying to build ultrasmall structures one atom at a time, has progressed in recent years. One potential application of...

Solved • Oct 25, 2018

Density

#### Q. Substance A has a density of 1.7 g/cm3.Substance B has a density of 1.7 kg/m3.Without doing any calculations, determine which substance is most dense.

Solved • Oct 25, 2018

Density

#### Q. For each box below, examine the blocks attached to the balances.Based on their positions and sizes, determine which block is more dense (the dark b...

Solved • Oct 25, 2018

Density

#### Q. For each box below, examine the blocks attached to the balances.The second picture.

Solved • Oct 25, 2018

Density

#### Q. For each box below, examine the blocks attached to the balances.The third picture.

Solved • Oct 25, 2018

Density

#### Q. What is the mass of a 2.75 L sample of a liquid that has a density of 0.950 g/mL ?

Solved • Oct 25, 2018

Density

#### Q. A backyard swimming pool holds 180 cubic yards (yd3 ) of water.What is the weight of the water in pounds?

Solved • Oct 25, 2018

Density

#### Q. An iceberg has a volume of 7655 cubic feet.What is the mass of the ice (in kg) composing the iceberg?

Solved • Oct 25, 2018

Density

#### Q. The density of titanium is 4.51 g/cm3.What is the volume (in cubic inches) of 3.6 lb of titanium?

Solved • Oct 25, 2018

Density

#### Q. Glycerol is a syrupy liquid often used in cosmetics and soaps. A 3.25-L sample of pure glycerol has a mass of 4.10 x 103 g. What is the density of ...

Solved • Oct 25, 2018

Density

#### Q. A small airplane takes on 281 L of fuel.If the density of the fuel is 0.821 g/mL, what mass of fuel has the airplane taken on?

Solved • Oct 25, 2018

Density

#### Q. Human fat has a density of 0.918 g/cm3.How much volume (in cm3) is gained by a person who gains 11.5 lb of pure fat?

Solved • Oct 25, 2018

Density

#### Q. What is the difference between density and mass?

Solved • Oct 25, 2018

Density

#### Q. The density of water at 3.98°C is 1.00000 g/mL. What is the mass in pounds of 17.736 L of water?

Solved • Oct 23, 2018

Density

#### Q. Sterling silver is a solid solution of silver and copper. If a piece of a sterling silver necklace has a mass of 105.0 g and a volume of 10.12 mL, ...

Solved • Oct 17, 2018

Density

#### Q. In the opening scenes of the movie Raiders of the Lost Ark, Indiana Jones tries to remove a gold idol from a booby-trapped pedestal. He replaces th...

Solved • Oct 17, 2018

Density

#### Q. In the opening scenes of the movie  Raiders of the Lost Ark, Indiana Jones tries to remove a gold idol from a booby-trapped pedestal. He replaces t...

Solved • Oct 17, 2018

Density

#### Q. In each of the following pairs, which has the greater volume?b. 100 g of gold or 100 g of water

Solved • Oct 17, 2018

Density

#### Q. In each of the following pairs, which has the greater mass? (See Table R‑5.)d. 75 mL of copper or 1.0 L of benzene

Solved • Oct 17, 2018

Density

#### Q. In each of the following pairs, which has the greater mass? (See Table R‑5.)c. 19.3 mL of water or 1.00 mL of gold

Solved • Oct 17, 2018

Density

#### Q. Mercury poisoning is a debilitating disease that is often fatal. In the human body, mercury reacts with essential enzymes leading to irreversible i...

Solved • Oct 17, 2018

Density

#### Q. Calculate these volumes.(a) What is the volume of 25 g iodine, density = 4.93 g/cm3 ?

Solved • Oct 16, 2018

Density

#### Q. Calculate these masses.(b) What is the mass of 25.0 mL octane, density = 0.702 g/cm3 ?

Solved • Oct 16, 2018

Density

#### Q. Osmium is one of the densest elements known. What is its density if 2.72 g has a volume of 0.121 cm3 ?

Solved • Oct 16, 2018

Density

#### Q. Calculate the density of aluminum if 27.6 cm3 has a mass of 74.6 g.

Solved • Oct 16, 2018

Density

#### Q. Liquid nitrogen is obtained from liquefied air and is used industrially to prepare frozen foods. It boils at 77.36 K. At the boiling point, the den...

Solved • Oct 12, 2018

Density

#### Q. These organic solvents are used to clean compact discs:If a 15.00-mL sample of CD cleaner weighs 11.775 g at 20°C, which solvent does the sample mo...

Solved • Oct 12, 2018

Density

#### Q. An empty vial weighs 55.32 g. (a) If the vial weighs 185.56 g when filled with liquid mercury (d= 13.53g/cm3), what is its volume? (b) How much wou...

Solved • Oct 12, 2018

Density

#### Q. The mineral galena is composed of lead(II) sulfide and has an average density of 7.46 g/cm3. (a) How many moles of lead(II) sulfide are in 8.32 ft3...

Solved • Oct 4, 2018