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You cannot add those two quantities; they are not compatible because they have different units. Think of it this way: you can't add apples and Oranges to get apples (or oranges), and you can't add 2x and 3y to get 5x (or 5y), so you can't add kilograms per cubic meter and cubic meters to get kg/m3 or m3. But you CAN multiply them! If you multiply a volume of a substance by its density, you will know how much of that substance you have. For example, if you have ten gallons of water and know that water's density is 8.34 pounds per gallon, then you know you have ten times 8.34, or 83.4 pounds of water. If you have 150 milliliters of liquid Mercury and know that mercury's density is 13.6 grams per milliliter, you can multiply 150 by 13.6 to get 2040 grams (2.04 kilograms). Note that you must have compatible units. If the volume is in fluid ounces but the density is in grams per cubic centimeter, you will have to convert one of them (or perhaps BOTH of them) so that they are compatible and can be multiplied.
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How can convert volume to mass?
To convert volume to mass, you need the density of the substance. Multiply the volume by the density to get the mass using the formula: mass = volume x density. The units of volume and density must be compatible for accurate conversion.
Is the density of an object equal to it's mass per unit volume?
An object's density is inversely proportional to the object's volume. As the volume increases the density decreases, and vice versa.
If you add water to sand does the volume density and mass change?
Well, honey, when you add water to sand, the volume will likely increase, but the density and mass will depend on the proportions of water and sand you mix. If you add just a little water, the density may increase slightly due to the added mass, but if you add a lot of water, the density will decrease because water is less dense than sand. So, the volume changes, but the density and mass can go either way depending on how much water you throw into the mix.
How do you find the density of a liqiud?
To find the density of a liquid, you need to know its mass and volume. The density of a liquid is calculated by dividing the mass of the liquid by its volume. This can be expressed with the formula: density = mass / volume.
What is the density of a 64-g iron cube that displaces 8 mL of water?
Depends what metal. If I might add to the above, you cannot calculate the density of a substance without knowing its mass (weight) and its volume, since density is mass per unit volume. On the other hand, if you know the type of metal, and that it is pure, you can simply look up the density in a table since the density of all substances is constant for that substance, regardless of the weight or volume of the sample.
