The melting point of aluminium oxides range from 3000 to 3500 ☌. The molar mass of a substance is found by multiplying the atomic weight of each atom in the molecule.įor example, an equivalent weight of 10 g/mol for hydrogen and oxygen would be calculated as follows:ġ mole x 6.02 x 10^23 atoms = 6.02 x 10^23 moleculesġ mole = 18 grams Molar masses of lighter compoundsįreezing Point: 0.00 ☌ Aluminium has different value for its molar mass. The molar mass of a compound is the same as its atomic weight. What is the molar mass of an equivalent weight? This is roughly equivalent to about 37 kilograms per cubic meter (kg/m³). The equivalent weight of copper is approximately 63.6 pounds per cubic foot. Equivalent weight of copperĬopper is most often used as a standard in the industry of electrical engineering, electronics engineering and metallurgy. Molar mass for copper = (25.2 x 18) = 486 Molar mass of copper It is important to remember that this calculation does not include the molecular weight of hydrogen, which has a molecular weight of two. What determines the molar mass of a compound?Ī compound’s molar mass is calculated by multiplying the atomic weights of the atoms in that compound and their number of molecules. The heavier compounds have a higher boiling point and freezing point whereas the lighter ones have a lower value for their melting points. These factors are directly related to how much heat energy must be released when an object is heated or cooled, respectively.Ĭopper has molar mass which makes it one of the heaviest metals in the periodic table but also has some lighter compounds within its chemical family that have different values for their molar masses. Molar mass is important because it determines several properties of an organic compound, such as boiling point, freezing point and flash point. It is a measure of the molecular weight of a compound. It is represented by the lowercase Greek letter μ (mu). The molar mass of a substance is the mass of one molecule of that substance.
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