2.7 Density

2.7 Density

• A container holds liquid.

• An athlete has 15% body fat.

• A plant has 15% nitrogen by mass.

• A physician has ordered atropine in a container of plant food.
• If atropine was available at 0.10 percent of solution.

• A patient gets 5 pt of blood during surgery.

• 500 mL of normal nitrogen is prepared by a nurse.

• Wine is 12% alcohol by volume.
• How many liters of liquid are used for an injection.

• There is a stock of Medrol of 20 grams per liter.

• The following clinical butter can be solved using conversion factors.

• In a candy factory, the nuts contain 22.0% stock bottle and the order is a dose of pecans by mass.

• A child with a mass of 67 lbs will be given 25 grams of ampicillin.

• Any object can be measured.

• Every substance has a unique density.
• Lead has a density of 11.3 g/mL, while cork has a density of 0.26 g/mL.
• Predicting if these substances will sink or float is possible from these densities.

• The objects that sink in water are denser than the objects that float.

• The densities of liquids andsolids are usually expressed in grams per cm3 or grams per liter.
• The densities of gases are stated in grams per liter.

• The density of a substance can be calculated from its mass and volume.

• Good cholesterol is a type of cholesterol that is measured in a blood test.

• The given and needed quantities should be stated.

• Put mass and volume into the density expression.

• A blood test can be used to measure low-density lipoprotein, also known as bad cholesterol.

• Volume displacement can be used to determine the volume of a solid.
• The volume of the solid is equal to the volume of the water.
• The water level goes up after the zinc object is added.

• The volume of the object is less than the amount of water displaced.

• Volume displacement can be used to determine the density of a solid.

• The health and strength of our bones is measured by their density.

• Fractures are more likely to occur at these locations.
• The breakdown of bone occurs more quickly as we age.
• More of the bone forms will be blocked by high density bones.
• Due to the loss of bone, bones are less dense.
• A decrease in mass and density is measured by the results of a bone density test.
• Thinner bones are more likely to break than a healthy young adult and other people.

• Greg has a large amount of blood.

• The given and needed quantities should be stated.

• To calculate the needed quantity, write a plan.

• Write the equalities and their conversion factors.

• To calculate the needed quantity, set up the problem.

• A patient gets 3.0 pt of blood during surgery.

• Specific gravity is calculated by dividing the density of a sample by the density of water.
• A substance with a specific gravity of 1.00 has the same density as water.

• The specific gravity of urine helps evaluate the water balance in the body.

• The normal range of specific gravity is between 1.003 and 1.030 for urine.
• There is increased specific gravity with dehydration.
• A dipstick containing chemical pads is used to evaluate specific gravity.

• A hydrometer and a dipstick are used to measure the gravity of urine.

• When the gem is placed to calculate the mass of a substance.

• The water level rises to 13.45 mL.

• A sample of a salt solution has a mass of 24.0 g.

• A cube of butter is 0.250 lbs and has a volume of 130.3 lbs.

• A mercury thermometer has broken.

• 35 gal of water is held in a fish tank.

• A titanium head is used on a golf club.

• The density values in Table 2.8 can be used to solve the mass.

• A cannon ball has a volume of 115 cm3.

• The balloon has a volume of 7.3 L.

• A piece of metal that you think is aluminum, silver, or lead can be found in an old trunk.
• It has a mass of 217 g and a volume of 19.2 cm3.

• You have two graduated cylinders.
• There is 40.0 mL of water when 0.
• 100 pt of syrup is added.
• You also have a container with syrup in it.

• The cube is 2.0 cm on each side.

• A urine sample has a density.

• A block of aluminum metal has a volume of 3.15 L and a mass of 20.6 g.

• The vegetable oil has a specific gravity of 0.92.

• A sample of tin has a mass of 0.104 kg.

• The density of the solution is 1.02 g/mL.

• The volume of the figure is over 200 cm3.

• Butter has a specific gravity.

• A urine sample has a mass of more than five grams.

• A graduated cylinder contains water.

• A person may have fatigue two conversion factors and decreased immunity if they write an equality and low.

• The normal range for iron in men is 80 to 160 mcg/dL.

• There is an iron supplement to be taken twice daily.

• Define the same quantity of volume, length, mass, or time.

• If you use a measur tor for two units that describe the same device, you can get a conversion FAC ber.

• No measuring device is needed to get an exact number.

• Significant figures are the numbers reported in a measurement relationship in the form of a fraction.

• Zeros can be written in front of a number or at the end of a non-decimal relationship in the metric or U.S. system.

• A percentage is written as a conversion factor by expressing match ing units as the parts in 100 parts of the whole.

• Conversion factors can be used to change from one unit to another.

• The final answer is written so that it has the same number of decimal places as the measurement.

• A prefix is placed in front of the volume.

• 10 cm is the volume of a substance.

• A boiling point of 100 degC is the freezing point of a relationship between two units.

• A number can be obtained by counting or by definition.

• The metric unit is used to measure mass.

• The official system of measure quantities from an equality or given relationship.
• There are two conversion factors for the equality that are written in the metric system for the United States.

• The low and est possible temperature is 0 K on the temperature scale.

• The SI standard unit of mass is the cube's volume.

• The metric unit is larger than a quart.

• When a quantity is deter liliter or grams per liter, a number is obtained.

• The standard unit of length is the meter.

• Most countries of the world have a system of measurement used by scientists.

• The amount of space occupied by a substance.

• The SI and metric systems use a unit of time.

• The digits are dropped from the number.

• When the calculator display has fewer digits than needed, significant zeros are added.

• In the metric and SI systems of units, a prefix attached to any unit increases or decreases its size by a factor of 10.

• You can change from one unit to another with a conversion factor.

• The metric, U.S., and metric-U.S. systems of measurement can have two conversion factors written for them.

• In multiplication or division, the final answer is written so that it has the same number of significant figures as the measurement within a problem.

• Write two conversion factors for the equality, the same number of decimal places as the measurement.

• In problem solving, conversion factors are used to cancel the given unit Density is an equality of mass and volume for a substance, which is writ and to provide the needed unit for the answer.

• The quantities are given and needed.

• The given unit should be converted to the needed unit.

• Density can be used as a conversion factor to convert between mass and units.

• The width of the computer chip is 0.75 in.

• This rug has a length of 38.4 in.

• Indicate the number of significant figures for each.

• The volume of the box should be determined by summing the volume of the box up.

• The following diagrams show a container of water and a cube.
• Some cubes float while others sink.

• The cube has a density of 4.5 g/ cm3.

• The cube is denser than water.

• The cube's density is 0.80 g/mL.

• One-half the density of water is what the cube has.

• The cube is the same size as water.

• The cube has a density of 4.5 g/ cm3.

• A fish company delivers seafood to your restaurant.

• The price of grapes in France is 1 euro per kilogram.

• 48 pesos per kilogram is the price for avocados in Mexico.

• The highway speed limit is 80 km/h.
• The price of a pound of potatoes is $1.75.

• During a workout at the gym, you set the treadmill at a fast pace, how many ounces of the medication are given in 55.0 m/min.

• Celeste's diet restricts her intake of food.
• The two cities have a distance of 1700 km.

• If a man takes 4 pills in a day and each pill contains more than 300 mL after a piece of lead is submerged.

• 50 mL of oil is contained in a measuring cylinder.

• There are problems related to the topics in this chapter.

• An athlete has 3.0% body fat.

• A container full of son's body was added to a 25000 g metal block.
• 8.0 m3 of water overflowed if body fat had a density of 0.909 g/mL and water.

• A metal cube has a density.
• How could it be in a mass?

• Both the 1 yd and 3 ft are exact.

• The 2.20 lbs has three SFs.

• It has two SFs.
• The 1 gal is correct.

• The 93 g has two SFs.
• The 100 g is the same as before.

• The 1 s is correct.

• The 3.5 g has two SFs.
• The day is exact.

• The 26.0 km has three SFs.
• The 1 L is correct.

• The 28.2 g has three SFs.
• The 100 g is the same as before.

• A second conversion factor can be given if a conversion factor is inverted.

• A cube with a higher density than the water will sink to the bottom.

• A cube with a density of 0.80 g/mL will be 0.25 g Lanoxin 1 tablets, about two-thirds submerged in the water.

• A cube with half the density of water will be submerged in the water.

• A cube with the same density as water will float a Motrin 1 tablet on the surface of the water.

• The green cube has the same volume as the gray cube.

• The green cube has 43 g more density than the gray cube.

• The amount of aspirin taken is divided by 4.

• The maximum dose does not exceed it.

• The mass value would be reported as 1 dL blood 42 mcg iron to 0.001 g.