Use this formula to convert between these units: 1,000 kg/m3 = 1 g/cm3 The density of liquids is often measured in kilograms per liter (kg/L) or grams per milliliter (g/mL) instead. These units are equivalent: 1 kg/L = 1 g/mL. Example: Diamond has a density of 3. 52 g/cm3.
Use the same unit that appears as part of your density measurement. Example: Since we measured the density of diamond in g/cm3, we should measure our diamond’s volume in cm3. Let’s say our diamond’s volume is 5,000 cm3.
Example: We have a diamond with volume 5,000 cm3 and density 3. 52 g/cm3. To find the diamond’s mass, multiply 5,000 cm3 x 3. 52 g/cm3 = 17,600 grams.
Force is measured in N (newton), which you can also write as (kg * m)/ s2. Acceleration is measured in m/s2. When you calculate F / a, the units cancel to give you an answer in kilograms (kg). [2] X Research source
An object with more mass does weigh more than an object with less mass, if they’re experiencing the same gravity.
For an element: look up the atomic mass of the element or compound you are measuring. This will be in “atomic mass units” (amu). Multiply by the molar mass constant, 1 g/mol, to put it into standard molar mass units: g/mol. For a compound: add the atomic masses of each atom in the compound to find the total amu of the molecule. Multiply this total by 1 g/mol.
The triple beam balance is not affected by gravity. Thus, it gives a true measurement of mass. It works by comparing a known mass to an unknown mass. The middle beam reads in 100g increments. The far beam reads in 10g increments. The weights will sit in a notch. The weight on the front beam can read from 0 to 10 grams. You should be able to get a very precise measurement of mass with this balance. The reading error for a triple-beam balance is only 0. 06 grams. Think of the triple-beam balance as operating like a teeter-totter. [6] X Research source
If the indicator on the far right does not align with the fixed mark, you should calibrate the balance by turning the set screw that you will find on the left under the pan. The reason you need to do this is because you need to make sure that the empty pan is 0. 000g so its weight does not skew the mass reading you ultimately get. The weight of the container or pan is called its tare. You can also set the pan to 0 by screwing the knob under the pan in or out. Again, the balance must read zero. Place the object to be measured on the pan. You are now ready to determine the object’s mass using the sliding beams.
Move the 10-gram slider along the beam to the right. Do this until the indicator drops below the fixed mark. The notched position immediately to the left of this point indicates the number of tens of grams. The beam in the front does not have notches. You can move the slider anywhere you want on the beam. The beam’s boldface numbers are grams. The tick marks between the boldface numbers indicate tenths of grams.
Read the front scale as you would a ruler. You can read it to the nearest half tick mark. For example, let’s say you are trying to measure a can of soda. If the rear weight is in the notch that reads 70g, if the middle weight is in the notch reading 300g, and if the the front beam weight is 3. 34g, then the can of soda weighs 373. 34g.
