L is unit of volume, Jin is the unit of mass. Given the volume of an object, we need to know its density if we want to ask for its mass. According to the formula of mass = volume × density, the quality of oil can be obtained!
It is known that the density of oil is about 0.8g/ML, and one liter is equal to 1000ML. According to the formula of mass = volume× density, we can find that the mass of one liter of oil is 1000ML×0.8g/ML=800g, and 800g is 1.6 kg.
Introduction to density:
Density is a measure of the mass in a specific volume. Density is equal to the mass of an object divided by the volume, which can be expressed by the symbol ρ (pronounced rou). In the international system of units and China's legal units of measurement, the unit of density is kilograms per cubic meter, and the symbol is kg/m3.
The density of a solid or liquid substance changes only slightly when the temperature and pressure change. For example, in the vicinity of 0℃, the temperature coefficients of various metals (the rate of change of object volume when the temperature rises 1℃) are mostly around 10-9. The pressure in deep water and underwater explosion can reach hundreds of atmospheres, or even higher (1 atmospheric pressure =101325pa), so the change of density with pressure must be considered.
Related instructions:
The calculation formula of mass: mass = density × volume. When the volume is fixed, the greater the density of the object itself, the greater the mass.
L is expressed as L in the international system of units, and its secondary unit is mL. The conversion relationship between liter and other volume units is:
1l = 1 000 ml = 0.001cubic meter =1cubic decimeter = 1000 cubic centimeter.
1L= 1dm× 1dm× 1dm= 10cm× 10cm× 10cm。
1mL= 1 cm3 = 1cc, 1 m3 = 1000 liters.