i do not know plz somone else answer it!
The mass of an object can be calculated by multiplying its volume and density. The formula is: Mass = Volume x Density. Make sure the volume is in cubic units (such as cubic centimeters or cubic meters) and the density is in units such as grams per cubic centimeter or kilograms per cubic meter.
You need a unit for the mass, not just a number. In any case, the idea is to divide the mass by the volume.
The number of kilograms in 15 liters depends on the substance being measured. For water, 15 liters is equal to 15 kilograms. However, for other substances with different densities, the conversion may vary.
The volume of the object displacing the water is the difference between the final volume (45mL) and the initial volume (30mL), which is 15mL. Since 1mL is equivalent to 1cm^3, the volume of the object is 15cm^3. To find the density, divide the mass (5g) by the volume (15cm^3) giving a density of 0.33 g/cm^3.
The density of the block of wood is 0.2 g/cm^3. This is calculated by dividing the mass (3 g) by the volume (15 cm^3).
The volume of ammonia is 19,5 L.
45/15= 3 Where density is equal to mass over volume
By definition: density = mass / volume Solving for volume: volume = mass / density Please note that a boy will NOT have a density of 15, at least, not if you use anything remotely related to SI units. The density of a person is close to that of water - with a density of 1, or 1000, depending on the units used.
The increase in temperature caused the density of the water to decrease. As the temperature rose from 4°C to 20°C, the volume of the water expanded slightly while the mass remained constant. This resulted in a lower density at the higher temperature.
Mass = 15 gm Volume = 2 cubic cm Density = Mass/Volume = 15/2 = 7 and 1/2 or 7.5 g per cm3
Density = Mass/Volume = 30/15 = 2 grams per millilitre.
You need to know the volume because the density is the ratio mass/volume.
The mass of an object can be calculated by multiplying its volume and density. The formula is: Mass = Volume x Density. Make sure the volume is in cubic units (such as cubic centimeters or cubic meters) and the density is in units such as grams per cubic centimeter or kilograms per cubic meter.
To find the volume, you divide the mass by the density. In this case, the volume would be 5 ml (15 g ÷ 3 ml).
Jo measured 15 mL of water. How many grams of water was that?
Density = mass/volume = 36/15 = 2.4 g per cm3
Density = Mass/Volume = 30/15 = 2 grams per mL.