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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.

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