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Why the density of a given pure substance remains constant regardless of the amount of material?
Wiki User
∙ 13y ago
Density represents mass per volume and so when homogeneous (and incompressible), an amount increase/decrease does not change density, as the mass and volume change in the same proportioning. Water density is 8.34#/cu ft, whether it is 2 cubic feet or 4 cubic feet.
Wiki User
∙ 15y ago
Wiki User
∙ 14y agoThere are probably several other constant ratios in everyday life that are no problem for you.
Examples:
Whether you buy one newspaper or a hundred, the unit cost (cost per copy) is a constant for that publisher.
It's always
(total cost of all the newspapers) divided by (the number of newspapers you buy).
Whether you go on a long trip or a short trip, the speed (miles per hour) is a constant for that driver.
It's always
(total distance you drive) divided by (time the trip takes to drive).
Whether you eat a small helping or a bowlful, the caloric content (calories per serving) is a constant for that food item.
It's always
(total calories in the amount you ate) divided by (number if servings in that amount).
Whether you have a large sample or a small sample, the density (mass per unit volume) is a constant for that substance.
It's always
(mass of the sample) divided by (volume of the sample).
Wiki User
∙ 13y agoDensity of substances remain the same because both the mass and the volume decrease which is directly propotional to the density of the substance and taken to cut it into pieces due to which the density remains the same .
Wiki User
∙ 12y agoDensity is equal to the mass per unit of volume. So if you add more of that substance, you are increasing both the volume, and mass of the substance. For example let's say I have 1kg of a substance which just do happens to fill 1L of a container. This means the density of the substance is 1/1 which is 1. Now if I increase the mass to 2kg, the volume will also increase because of the addition. This means that I now have 2kg in 2L which is 2/2 which is 1. So increasing the mass does not actually change the density
Wiki User
∙ 9y agoWell . . . the density of a substance does change slightly due to temperature and pressure changes.
Otherwise, the density of a substance will stay close to the same because the substance is physically stable . . . there is not much that can significantly change its density.
Wiki User
∙ 12y agoThis is because their ratio will stay the same (volume divided by mass = density).
Wiki User
∙ 14y agoDensity is the ratio between mass and volume as mass increases the volume also increases in the same ratio so density for every pure substance at any given temperature is always constant.
Wiki User
∙ 13y agoDensity is mass per unit volume and is a characteristic of a substance. When the amount of material is changed, the mass and volume change in proportion so that the density remains constant.
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What are the usefulness of density in identification of unknown substance?
Density is useful for identifying an unknown material because it is a physical constant. A physical constant is a unique characteristic of the material in question. This constant never change or vary with the shape or amount of the material/substance.
Why is density is a useful physical property for identifying substances?
Density is useful for identifying an unknown material because it is a physical constant. A physical constant is a unique characteristic of the material in question. This constant never change or vary with the shape or amount of the material/substance.
What is the formula for the density of a irregular shaped object?
Density = (mass) divided by (volume)regardless of the substance, or the shape of the sample.
Is a solid have a high or low volume?
Density is dependent on mass and volume. Density is not a fixed constant for all substances either. The measure of density is by substance based on the above factors.
Is density an intensive property or extensive property?
Intensive because it doesn't depend on the amount of material.
What are the usefulness of density in identification of unknown substance?
Density is useful for identifying an unknown material because it is a physical constant. A physical constant is a unique characteristic of the material in question. This constant never change or vary with the shape or amount of the material/substance.
Why is density is a useful physical property for identifying substances?
Density is useful for identifying an unknown material because it is a physical constant. A physical constant is a unique characteristic of the material in question. This constant never change or vary with the shape or amount of the material/substance.
Is the density of substance dependent on the composition of the substance or the amount of the substance?
The density depends on the nature of a material.
Under the same conditions of temperature and pressure three different samples of the same uniform substance will have the same?
Density reason is that the density of a uniform material is constant Density is independent of the size and shape of the sample.
Why is it important thatwe control the density for any substance?
The density of any substance is constant, we don't control it. However, by finding the density of any substance, it can be used to help identify the substance.
Does the density of a hammer change whether it is in a space ship or on earth?
Density does not change regardless of where the object is. It is a constant.
How can the property of density be useful as qualitative information about a specific substance?
Density information for a substance is useful because it is always the same regardless of the amount of substance there is. Take water for example. The density of water is same regardless if you have ten gallons of it or tablespoon of it. (1 gram/milliliter at STP). Since the density of a substance is always the same this property can exploited to determine the identity of unknown substances.
What is the formula for the density of a irregular shaped object?
Density = (mass) divided by (volume)regardless of the substance, or the shape of the sample.
What things must you know to find the density of a material?
To find the density of a material all you need to know is the mass and volume of the substance. if you knw the mas and volume...finding out the density is very simple...all you need to do is mass/volume and you will have the density of that substance!
What effect does an increase in pressure have on the density of a material?
When pressure increases the volume of the material decreases. Density=mass/volume When volume decreases density increases.(Mass constant)
If a substance is floating does it have more or less mass?
mass of a substance is constant at any place in the universe.the reason for floating is its density is less than density of medium in which it is floating
If the edges of a glass block were rounded instead of square what would happen to the density?
Nothing. Density of a particular substance remains the same no matter how much of the substance is present or what shape it is in. Since density is measured in mass / volume, adding or taking away material adds both mass and volume or subtracts both mass and volume, keeping a constant proportion.
