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What is the mass of one mole of Al2O3 if aluminum has an atomic number of 13 and an atomic mass of 26.98 and oxygen has an atomic number of 8 and an atomic mass of 16.00?
Wiki User
∙ 8y ago
The mass of one mile of a compound is found by adding up the atomic masses of each of the component elements.
A mole of Al2O3 has mass of 2 × 26.98 + 3 × 16.00 = 101.96g
Wiki User
∙ 8y ago
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Al2O3 plus HBr AlBr3 plus H2O?
Al2O3 + 6HBr = 2Albr3 + 3H2O
Is hardness of MgO is greater than Alo?
i don't know whether there exists Alo,all i study so far is Al2O3both MgO and Al2O3 are ionic compouds. Al3+ is smaller than Mg2+(due to higher proton charge thus attracts the electrons closer),thus the ionic bonds in Al2O3 is greater thus it is harder.
What type of reaction is Fe2O3 plus 2Al equals 2Fe plus Al2O3?
displacement reaction............ u people have to find the answers instead asking others without shame..............
Determine the percent yield of a reaction that produces 28.65g of Fe when 50g of Fe2O3 reacts with excess Al according to the following reaction Fe2O3 plus 2Al equals Al2O3 plus 2Fe?
81.93%
What is the atomic number for Rubies?
Ruby is not a element, so it does not have an atomic number. Ruby is a red variety of the mineral called corundum (all other color varieties are called sapphires), which is composed of the elements aluminum and oxygen and has the formula Al2O3. Aluminum has the atomic number 13 while oxygen's atomic number is 8.
What forms Rubies?
Al2O3, aluminum and oxygen.
What happens when aluminium and oxygen combine?
A passive aluminum oxide layer will form on the surface of the aluminum, when it is in the presence of Oxygen (Al2O3). This then goes on to protect the rest of the aluminum from further oxidisation as the layer will remain in place, bonded to the aluminum.
What compound is formed when aluminum and oxygen combine?
Al2O3
If 9 grams of trivalent metal are combined with 8 grams oxygen the atomic weight of the metal will be?
Aluminium oxide, Al2O3; the atomic weight of aluminum is 26,981 538 6.
In the compound Al2O3 aluminum's oxidation number is plus 3 and oxygen's oxidation number is .?
In the compound Al2O3 oxygen is oxidized to minus 2. You will note that two aluminum times plus 3 is 6, and 3 oxygen times minus 2 is minus 6; thus the combination of aluminum and oxygen yields an electrically neutral molecule, since 6 - 6 = 0.
What does al2o3 stand for?
Aluminum oxide has the molecular formula of Al2O3. It is composed of aluminum (Al) and oxygen (O) and is 102.0 grams per mole.
In the compound Al2O3 aluminum has an oxidation number of 3 while oxygen's oxidation number is .?
In the compound Al2O3, aluminium has an oxidation number of +3, while oxygen's oxidation number is __-2 ____. For aluminium oxide (Al2O3) to form the ionic charges MUST balance. Hence For the 2 aluminiums it is 2 x 3 = +6 For the 3 oxygens it is 3 X -2 = -6 +6 -6 = 0 So the charges balance, hence Al2O3 is neutrally charged compound and NOT an ion.
In the compound Al2O3 aluminum has an oxidation number of 3 while oxygen's oxidation number is?
In the compound Al2O3 oxygen is oxidized to minus 2. You will note that two aluminum times plus 3 is 6, and 3 oxygen times minus 2 is minus 6; thus the combination of aluminum and oxygen yields an electrically neutral molecule, since 6 - 6 = 0.
What is the chemical formula for a compound made of entirely aluminum and oxygen?
Al2O3
Does aluminum plus oxygen forms aluminum oxide?
Yes, aluminum reacts with oxygen to form aluminum oxide. 2Al(s) + 3O2(g) ---------> Al2O3(s)
What is formula for aluminum and oxygen?
Aluminium combines with oxygen to form aluminium oxide or alumina, Al2O3
