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 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.
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 thermocol or polystyrene is 1.64 g/cm3. it can vary due to the mass and volume of the object, the density usually ranges from 5kg/m3 to 12kg/m3.
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).
If something is denser than water, it will sink. If something is not as dense as water, it will float. At 15 degrees celsius, water is roughly 999 kgs per cubic meter. So, If a object has a mass of 1000 kgs, and a volume of 20 cubic meters, then its density is 50 kgs per cubic meter, and it will float.
You need to know the volume because the density is the ratio mass/volume.
To calculate the density of an object, you can use the formula: density = mass/volume. Given that the mass is 78 g and the volume is 15 cm³, the density would be 78 g / 15 cm³ = 5.2 g/cm³. Therefore, the density of the object is 5.2 g/cm³.
Density = Mass/Volume = 15/60 = 0.25 grams per millilitre.
Density of that object is 2.8
Mass = 15 gm Volume = 2 cubic cm Density = Mass/Volume = 15/2 = 7 and 1/2 or 7.5 g per cm3
Density is the quotient of the mass and the volume. 15 grams ÷ 5.0 mL = 3.0 g/mL
15 3x5=15
Density = about 1.66 g/mL
The density is 15 g/mL
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.
Density is just the mass divided by the volume, so 3 grams ÷ 6 mL = 0.5 g/mL
Note that "cm" is not a volume, so I'll assume you mean "cm3". 15 / 2 = 7.5 gm/cm3