400g/500cm = 0.8 g/cm3
I'm going to assume you mean a volume of 500cm3. density = mass/volume = 400g/500cm3 = 0.8g/cm3
You are comparing 2 different things: weight and volume. So this question cannot be answered, unless you tell me what substance you are working with =] First of all, mg is a measure of weight and ml is a measurement of volume, to determine how many ml 400mg is we need to know what density or Specific Gravity (SG) the substance is. Water has a SG of 1 and a density of 1kg per liter.there are 1000mg in 1 gram and a 1000 grams in a kilogram (about 2.2 pounds) so 400mg=0.0004 kilograms.The density of Gold is about 19.3kg per liter ( or 19.3 grams per ml).The formula for density is D=m/v (Densityequals mass over volume) Mass divided by volume.Also see http://wiki.answers.com/Q/What_is_the_formula_for_density
That will depend on the exact shape, and the material it is made of.You can get an estimate, by assuming a spherical shape, calculating the volume, and multiplying that by some density (for example, the density of water). The actual mass may be a bit more than that if its a rocky asteroid; a bit less if it's ice, for instance.
The conversion between grams and milliliters depends on the density of the substance. For water, which has a density of 1 g/mL, 400 grams would be equal to 400 milliliters. However, for other substances, you would need to know the density to convert between grams and milliliters.
The mass of pine can vary depending on its density, but on average, pine has a density of about 0.5-0.6 g/cm3. Therefore, an 800 cm3 piece of pine would have a mass of approximately 400-480 grams.
I'm going to assume you mean a volume of 500cm3. density = mass/volume = 400g/500cm3 = 0.8g/cm3
The density of the wooden board is 0.8 g/cm^3. You calculate density by dividing the mass (400 g) by the volume (500 cm^3). So, density = mass/volume = 400g/500cm^3 = 0.8g/cm^3.
The density of the cork block is 40 g/cm^3. This is calculated by dividing the mass (400 g) by the volume (10 cm^3).
Density = Mass /Volume = 800g / 2L = 400 g per L
stupid question. mass and volume are not interchangable. it depends on the density of the mass. a 400 gram balloon will take up more milliliters than a 400 gram rock.
300 to 400
You can't do a general conversion from liters to grams. A liter is a unit of volume, a gram is a unit of mass. For a specific substance, the relationship is: mass = volume x density
Mass and Volume are related through Density where: Volume x Density = Mass As for your question, styrofoam is a brand name that we use to describe any polystyrene foam. As such, its density varies depending on the manufacturer. From what I found in this answer: http://wiki.answers.com/Q/What_is_the_density_of_styrofoam it looks like you would have anywhere from 50 to 400 cm3 (50 to 400mL)
To convert mass (kg) to volume (cubic meters), you need to know the density of the substance. Without the density, you cannot accurately convert 400 kg to cubic meters. Density is needed to convert mass to volume.
The mass of the sample is 400 kg = 400,000 grams.The volume is (20 x 50 x 80) = 80,000 cm3The density is (mass / volume) = (400,000 / 80,000) = 5 gm/cm3
It is not clear whether the strength of the solution is given in terms of mass/mass or volume/volume (or mass/volume). Without that information, it is not possile to answer the question. Depending on which one you may need the density of the active ingredient or of the solvent to convert between mass and volume of that component.
The units are not directly convertible. Liters (ml) are a liquid volume, and grams are mass/weight units. Knowing the specific density of the sugar would allow calculation of the dry volume.