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How to calculate density - Office Equipment & Supplies

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Density is defined as the ratio of the mass of a substance to the volume occupied by that substance.
To represent density one use the Greek letter RHO (looks like a rounded p)
RHO= mass/volume
Unit of density is gram/ cm^3 or kg/m^3
Relative density is the ratio of the density of a substance to the density of pure water (at about 4 degrees Celsius). In this relation both densities must be expressed in the same units.

Posted on Nov 17, 2013

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A brick of salt has a volume of 50cms and a mass of 100grams.what is its density? show all calculations


Divide the mass (100 g) by the volume (50 cm^3).
Density =100 g /50 cm^3 =2 g/cm^3

Aug 19, 2014 | Office Equipment & Supplies

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What should 1cu. yd of concrete weigh


Do not blame your calculator. Get a plausible average mass density for the concrete (dry or wet) and multiply the density by the volume.

Mar 25, 2014 | Calculated Industries Office Equipment &...

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Is it possible to measure the volume of a liquid in milliliters when you are finding its density?


Yes. The density is simply the mass divided by the volume. If you know any two of the above then you can calculate the third.

Jan 06, 2014 | Office Equipment & Supplies

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1600 cubic feet equal how many pounds.


A cubic foot is a unit of volume. A pound can be a unit od mass (weight) or a currency. Either way a volume cannot be converted into a mass nor a currency.
If you are doing homework read carefully the question to figure out what substance they are talking about.
Once you know the substance look up its density or specific gravity and do the calculation
mass (in pouunds) =density (in pounds per cubic foot) * volume (in cubic feet)

As you see, if you know the density (specific gravity) in pounds per cubic foot, you can calculate the mass of any volume of that substance (in cubic feet).

And please, never try to convert a volume into a mass.

Aug 23, 2011 | Texas Instruments TI-30XA Calculator

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The volume of air in a person's lungs is about 5.0 Li. calculate the mass of inhaled air at 25 degrees Celsius and 1 atmospheric pressure where the density of air is 1.2 g/Li.


The pressure and temperature are irrelevant since u know the density. So all you need to do is. 1.2 x 5=6 gallons Gallons is a unit of volume, if u need the answer in a different unit just repost

Jun 25, 2011 | Casio FX-115ES Scientific Calculator

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A block of stone has a mass of 405 kg and a volume of 0.15 m3. Calculate its density.


The density is the mass divided by the volume. Divide 405 by 0.15 to get the density in kg/cubic-meter.

May 23, 2011 | Office Equipment & Supplies

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