What Is The Percent Composition Of Magnesium In Mgo, Magnesium oxide, commonly known as MgO, is a chemical compound made up of magnesium and oxygen. It, General, what-is-the-percent-composition-of-magnesium-in-mgo, JPOSE
Magnesium oxide, commonly known as MgO, is a chemical compound made up of magnesium and oxygen. It is a white solid substance with a high melting point. The percent composition of magnesium in MgO can be determined by calculating the mass of magnesium present in one mole of MgO.
To calculate the percent composition of magnesium in MgO, we need to find the molar mass of MgO. The molar mass of MgO is the sum of the atomic masses of magnesium and oxygen. The atomic mass of magnesium is 24.31 g/mol, while the atomic mass of oxygen is 16.00 g/mol. Therefore, the molar mass of MgO is:
MgO = (24.31 g/mol) + (16.00 g/mol)
MgO = 40.31 g/mol
To find the percent composition of magnesium in MgO, we need to divide the mass of magnesium in one mole of MgO by the molar mass of MgO and multiply by 100%. The mass of magnesium in one mole of MgO is equal to the atomic mass of magnesium, which is 24.31 g/mol. Therefore, the percent composition of magnesium in MgO is:
Percent composition of magnesium in MgO = (24.31 g/mol / 40.31 g/mol) x 100%
Percent composition of magnesium in MgO = 60.3%
This means that magnesium makes up about 60.3% of the total mass of MgO. Oxygen makes up the remaining 39.7% of the mass.
In conclusion, the percent composition of magnesium in MgO is 60.3%. This calculation can be used to determine the percent composition of any chemical compound, as long as the atomic masses of the elements present in the compound are known.