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Determine its volume by how much water it displaces,

then divide mass by volume

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Q: How do you find mass of a rock by its density?
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How can you find the density of a rock or key?

Find the mass using a scale. Find the volume by the water displacement method. Divide mass by volume and that equals density.


How do you find the density of a rock with the volume of 25cm3 and a mass of 100 grams?

density = mass divided by volume = 100/25 = 4 grammes per cubic centimetre.


Mass of rock?

Mass is measured by density multiplied by volume. In order to figure out a mass of a rock, one must know its density and its volume measurements.


If you have a rock with a volume of 15cm3 and a mass of 45g What is its density?

The rock's density is 3 g/cm3


How do you find density with mass and volume?

mass = density ( )/cm3 multiplied by volume( )cm3


Mathematical formula for determing density?

Density is the amount of matter per cubic unit. So, in order to find density, you need to divide the mass of the object by its volume. For an example: if a rock has a volume of 2 cubic meters and it has a mass of 10 kg., then you would divide 10 by 2 and you get the density of the rock (i.e., 5 kg/meter^3). Density = Mass / Volume


Which would have the greater mass - a rock with a volume of 1mL or a rock with a volume of 4mL?

The answer depnds on the density of each rock. If they are different denities thenthere is a chance that the 1mL rock may have more mass. If they have the same density then the 4mL rock will have more mass


How can you find density of mass of 67.5?

Find its volume. Divide the mass by the volume to get the density.


How do you find density of a rock?

The simplest way is to use the formula: P = m / V Density = mass / volume So to calculate the denisty of the rock you will have to find out how much it weighs and how much volume it occupies. You can measure the weight by placing the rock on a weighing scale, this will give the weight in grams. You can determine the volume by submerging the rock in a measuring cup partially filled with water and measuring how much the volume increases. This will give the volume in cm3 Now use the formula to calculate its density in g/cm3.


How do you find volume when the density and mass are known?

Density = Mass / Volume Rearranging this gives: Volume = Mass / Density Mass = Density × Volume


How do you find the mass when the voulme and density is given?

Density = mass/volumeMass = (density) x (volume)Volume = mass/density


Find the density of a rock that has a mass of 25g and a volume of 5cm3?

Density is mass over volume, so divide 25 by 5(25 / 5) = 5 g/cm3 or g/cc