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Q: What is the composition of (Mg) in MgO?
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What is the percent composition of magnesium Mg in MgO?

The percent composition of magnesium (Mg) in MgO is 60%. This is because there is one magnesium atom (24.3 g/mol) and one oxygen atom (16.0 g/mol) in the formula unit MgO (40.3 g/mol), so dividing the molar mass of magnesium by the molar mass of MgO gives 0.603, or 60.3%.


What is the percent composition of oxygen in MgO?

The molar mass of MgO is 40.3 g/mol (Mg: 24.3 g/mol, O: 16 g/mol). The molar mass contribution of oxygen in MgO is 16 g/mol. Therefore, the percent composition of oxygen in MgO is (16 g/mol / 40.3 g/mol) * 100 = 39.7%.


What is the balanced equation for Mgo plus H2O?

The balanced equation for MgO + H2O is MgO + H2O -> Mg(OH)2.


What is the percent composition of magnesium (mg) on MgO?

60%


What one has a higher mass percent of magnesium MgO or Mg3N2?

Magnesium nitride (Mg3N2) has a higher percentage composition of magnesium than magnesium oxide (MgO) does. The percentage composition of magnesium in magnesium nitride is 72.2% and the percentage composition of magnesium in magnesium oxide is 60.3%.


If some magnesium oxide had escaped from The Crucible would the percentage composition calculation of magnesium be too high or too low?

The percent of Mg calculated will be too high. Let's say that you reacted 1.00 g of Mg and made some MgO, but so much MgO escaped as smoke that only 1.00 g of MgO was left. You would then conclude from the numbers that the mass of O in the MgO was zero! This would lead you to conclude that the percent of Mg in the MgO was 100 %, which is silly and clearly in error. Although this is an extreme example, it illustrates that the loss of MgO as smoke from the crucible leads to a percent of Mg (calculated) that is above the expected 60.3 %.


What is the chemical equation for Magnesium Oxide with Hydrogen?

The chemical equation for the reaction between magnesium oxide and hydrogen is: MgO + H2 -> Mg + H2O


What is the balanced equation for MgO H2O?

mgo+h2o=mg(OH)2 AAHana


Complete the balance MgO plus H2O?

The reaction is:MgO + H2O = Mg(OH)2


What is the percent composition in magnesium in MgO?

60%


If Mg reacts with O the compound is MgO?

Yes, when magnesium (Mg) reacts with oxygen (O), it forms magnesium oxide (MgO) as the compound.


When added to water would MgO produce a base?

Yes, when magnesium oxide (MgO) is added to water, it will produce magnesium hydroxide (Mg(OH)2), which is a base. MgO reacts with water to form Mg(OH)2 by accepting a proton from water molecules.