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First: all units of measurement such as meters, seconds, liters, kilo-grams, etc. were invented to be comfortable for daily use.

When scientist had to agree on how to measure volume they decided the unit (1liter) would be the amount of space occupied by 1kg of water at room temperature (and vice-versa, 1kg is the weight of 1liter of water).

So: 0.5liters are 500g, 10liters are 10kg, etc.

By the way, 1liter = 1dm3 = 1000ml = 1000cm3

and 1Kg = 1000g

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13y ago
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14y ago

When creating a standardised system of measurement some definitions have to be made.

Base units are defined and derived units come from these.

In the west and elsewhere common systems are the Imperial system and the metric system.

Originally, in the metric system, mass was defined as the kilogram, which was the mass of one litre of water. So volume and mass were inextricably linked.

From the metric system the SI units developed as accuracy became more important and the definitions changed slightly.

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10y ago

Numbers are not "same" unless their units are the same. The mass and volume are

two different units of measurement. However, in terms of SI units, 1 gram is the mass

of 1 milliliter (volume) of water, and also of 1 cubic centimeter (volume) of water, because

those units have been defined based on the mass and volume of water.

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14y ago

At zero degrees Celsius water with a mass of one kilogram has a volume of one liter.

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Q: Why mass of water is equal to its volume?
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What is the relationship of volume of water to its mass?

volume in litres is equal to its weight in kgs 1000ltrs is equal to 1000kgs


This is expressed as the weight of a mineral compared with the weight of an equal volume of water?

This is the specific gravity of the mineral. It's a comparison of how much mass a given volume of it has compared to the mass of an equal volume of water.


What is the ratio of the mass of the substance to the mass of an equal volume of water?

specific gravity


What is the ratio of the mass of the substance to the mass of an equal volume of water called?

Specific Gravity


What does the volume of displaced water equal?

It equals the mass of the object placed in it.


Do all solids have less volume than same mass of liquid?

No. Water ice for example will have a larger volume than an equal mass of liquid water.


What relationship are there between the mass of a sinking objectand the volume of water displaced?

There is no relationship between the mass of a sinking objectand the volume of water displaced.Their volumes are equal though .


How do you prove that the mass of a substance of a density is equal to the volume of water?

Submerse the object in a completely full bucket. measure the volume of the displaced water due to the object. Multiply the volume of the displaced water by the density of the object to give mass.


How do you find the mass of an irregular object?

you use the water displacement test. the mass of the displaced water is equal to the mass of the object. because the density of water is one, this means that the volume of the water is equal to the mass of the object * * * * * That is only true if the body floats. Two blocks of different metals, but of the same size will displace the same volume of water. Their masses will not be the same.


How can you tell if something is made out of gold?

Determine the objects mass then submerse it in water, the volume of the water displaced is equal to the objects volume. Now get an equal mass of gold and submerse that in the the same amount of water and record the volume of water it displaces. If the volume of water displaced by the first object is eqaul to the volume of water displaced by the gold then the first object is made out of gold, if however the volumes dont match then it is not made out of gold.


What determines the mass of objects that have equal volume?

Density. This is quantified as a mass over a volume, so if you know the volume, the density will allow you to determine the mass of an object. Density equals mass divided by volume so mass is equal to density multiplied by volume.


Is volume and mass the same thing?

No, volume and mass are related but they are not the same. As an example, 1 liter of water has a mass of 1 kg whereas 1 liter of mercury has a much higher mass. Mathematically, Mass divided by volume is equal to density. Mass has units of Kg and volume has units of m3.