Volume vs. Density
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Volume vs. Density
What is the difference between volume and density? And when would it be appropriate to use these definitions in a problem?
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Re: Volume vs. Density
Volume is the amount of space and object takes up (meters cubed), while density is the amount of space that object takes up, in relation to matter inside the object (kilograms per meter cubed). I think in class Lavelle mentioned that volume was an extensive property, so volume could always change depending on how much of a substance we have. (Ex: 100 mL of water). Density was an intensive property, so it would always stay the same no matter how much of the substance we have. (Ex: density of water is always 1 gram/mL, regardless of the amount of volume). Hope this helps!
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Re: Volume vs. Density
Hey! Volume is how much space an object takes up whereas density is mass/volume. I think you should use volume when working with M=n/v problems where you may be required to find the volume of a solution given its molarity and moles. Density, on the other hand, can be used to calculate concentration since it gives the amount of mass per unit of volume.
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Re: Volume vs. Density
From Dr. Lavelle's lecture on 9/28/21, he explained that volume is an extensive property, which means it depends on the size. On the other hand, density is an intensive property which means it doesn't depend on the size and doesn't change based on amount. While an item can have a different volume or mass of something, the density of that item would still not change. Problems-wise, questions with volume for sure comes up a lot more than questions with density. If I am correct, we sorta used density during the achieve HW question #10, but we only used it to find the grams of the 2-butanone. I hope I was able to give a different perspective than the post before me! :,)
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Re: Volume vs. Density
In simple terms, volume depends on size while density does not. This is why volume is an extensive property while density is an intensive property. Density is often used to measure the composition of many different kinds of substances while volume focuses on measuring a liquid substance.
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Re: Volume vs. Density
Hi Brenda!
When I think of volume and mass, I think of volume as the space occupied by an object while density is the amount of matter in an object.
During Professor Lavelle's lecture, I learned that volume is considered an extensive property, meaning it changes to external conditions. On the other hand, density is an intensive property. It's independent, and doesn't change based on the amount. density=mass/volume and molarity=mol/volume (in L)
You can also use the formula (density=mass/volume) as a guide.
When I think of volume and mass, I think of volume as the space occupied by an object while density is the amount of matter in an object.
During Professor Lavelle's lecture, I learned that volume is considered an extensive property, meaning it changes to external conditions. On the other hand, density is an intensive property. It's independent, and doesn't change based on the amount. density=mass/volume and molarity=mol/volume (in L)
You can also use the formula (density=mass/volume) as a guide.
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Re: Volume vs. Density
It's also important to note their relationship, that when volume stays the same, density is directly proportional to the mass. (Density = mass/volume) and (Mass = Density*Volume)
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Re: Volume vs. Density
Hey!
So the main difference between density and volume is that volume is how much space a certain amount of a substance takes up and density is how many molecules/how much mass is packed into that given amount of space. Therefore, density is an intensive property (one that is an innate property that does not depend on the amount of substance that is present) while volume is extensive (dependent on external factors such as the amount of substance present).
So the main difference between density and volume is that volume is how much space a certain amount of a substance takes up and density is how many molecules/how much mass is packed into that given amount of space. Therefore, density is an intensive property (one that is an innate property that does not depend on the amount of substance that is present) while volume is extensive (dependent on external factors such as the amount of substance present).
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Re: Volume vs. Density
In terms of when we would use them in problems, the volume of gases is often an important variable to consider. Density is something we would use more often to calculate grams of liquids and solids (at least in my high school chemistry experience).
Re: Volume vs. Density
Volume can change but density does not. Volume depends on the shape of the container, but the density of an object will always stay the same no matter what container or shape it is in.
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Re: Volume vs. Density
Hello!
Volume is essentially the quantity of that an objects overtakes, measured in m^3. As an extensive property, this means that a change in volume is subject to how much of an object we have, regardless of what kind of material it is. However, density is the amount of space that object takes up, indicating the mass over the volume of an object, aka kg / m ^3, relying on the space, size, and mass of object's atoms. As an intensive property, density does not change regardless of how much of object exists, and therefore the material of the object matters. If we compare about 3 mg gold, an extremely dense material, to 30 mg of gold, its density stays constant, where as its volume changes because the amount available changes.
Volume is essentially the quantity of that an objects overtakes, measured in m^3. As an extensive property, this means that a change in volume is subject to how much of an object we have, regardless of what kind of material it is. However, density is the amount of space that object takes up, indicating the mass over the volume of an object, aka kg / m ^3, relying on the space, size, and mass of object's atoms. As an intensive property, density does not change regardless of how much of object exists, and therefore the material of the object matters. If we compare about 3 mg gold, an extremely dense material, to 30 mg of gold, its density stays constant, where as its volume changes because the amount available changes.
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Re: Volume vs. Density
Density describes the amount of matter in an object, is measured in kg/m^3, and is determined by mass and volume (m/V). Volume represents the space occupied by an object, is measured in m^3, and is determined by length, width, and height.
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Re: Volume vs. Density
It is also important to note that volume is extrinsic, meaning the quantity of substance matters, but density is intrinsic, so no matter how much of a substance there is, the density should remain constant.
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Re: Volume vs. Density
Volume is essentially how much space the object takes up, and density measures how compact or dense the mass of the object is. For example, lets say a rubik's cube has the volume of 64cm^3 and its density is 8.09g/cm^3. Lets also say that a wooden cube has the volume of 64cm^3, but its density is 12.8g/cm^3. From this, we can see that the rubik's cube and wooden cube have the same volume, which means they take up the same amount of space, but the wooden cube's density is larger, meaning the wooden cube's mass is more compact.
Re: Volume vs. Density
Volume can change depending on how much there is of it, if there is more of the substance the volume is greater. Density stays the same since it is a measure of mass per unit volume, this ratio stays the same even if the volume changes.
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Re: Volume vs. Density
Volume is the amount of space an object takes up. Density is mass divided by volume. So volume can change depending on how much of a substance is present and how much space it is occupying. However, density is an intrinsic quality of a compound or element and it doesn't really change.
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Re: Volume vs. Density
Volume depends on the quantity of substance in a specified space, while density doesn't depend on the quantity of the substance but rather the mass of the said quantity.
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Re: Volume vs. Density
Volume refers to the amount of three-dimensional space that a substance occupies. This can change, for example, gases will take up as much space as they are allotted. Density on the other hand refers to the concentration of the substance. In other words, how much of the substance is packed per unit of volume. This can also change if the amount of the substance were to change, or the volume the substance occupies were to change. In terms of using these terms on a problem, I would just use them whenever they're applicable. Use volume if the question asks for the amount of space something takes up and use density if it asks for the concentration of a substance.
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Re: Volume vs. Density
Density is Mass/volume, in which volume is the amount of space occupied by a given object.
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Re: Volume vs. Density
Volume is the amount of space an object takes up while density is the amount of matter in an object.
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Re: Volume vs. Density
Density and Volume are proportional to eachother. Volume is how much space a substance takes up while density is also how much space a substances takes up in relation to that substance's mass. Density = Mass/Volume.
Re: Volume vs. Density
Volume is how much space an object takes up whereas density is how many atoms are inside of that volume.
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Re: Volume vs. Density
Volume is the space occupied by an object. Density refers to the amount of matter in an object. Volume and density are proportional to each other. Density is mass per unit volume.
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Re: Volume vs. Density
Volume refers to the amount of space something takes up. Density is the amount of matter (mass) of something in a certain space (mass/volume). You need volume to calculate density, but you don't need to know density to know something's volume.
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Re: Volume vs. Density
Volume refers to the measurement of the amount of three-dimensional space occupied by an object. Density refers to the mass contained in a substance for a given volume. It explains the relationship between mass and volume. Density determines how densely molecules of a given object are packed into a given volume.
Re: Volume vs. Density
Volume is how much space a substance takes up while density is how much space a substance takes up in relation to the amount of matter the substance has.
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Re: Volume vs. Density
Volume is the amount of space something takes up, while density is how compact something is. The formula for density is mass divided by volume. While volume is an extensive property, as values can only be applied to specific amounts of substances, density is intensive, as it is a ratio that can be applied to any amount of substance.
Re: Volume vs. Density
Volume is the amount of space an object takes up. The density would be the mass of the object divided by the volume. However the density would always be the same as the mass of the object is always proportional to the volume.
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