Balanced Formula:
2Mg + O2 --> 2MgO
Mole ratio:
2 : 1 : 2
Givens:
.486 g oxygen
.738 g magnesium
24.3 g = Atomic Mass of magnesium
16.0 g = atomic mass of oxygen
40.3 g = molecular mass of magnesium oxide
Find the amount (in moles) of Magnesium oxide that oneelement will make:
(.486 g O) / (16.0 g O) × (2 moles MgO)= .0608 moles MgO
(.783 g Mg) / (24.3 g Mg) = .0322 moles MgO
There is less MgO produced with magnesium than oxygen; therefore, magnesium is the limiting reactant and the oxygen is the excess reactant. The magnesium determines how much Magnesium oxide is produced. It would be good to get .0608 moles of MgO, but there isn't enough magnesium. So the amount of MgO produced will be determined on the amount of Magnesium.
Convert moles of MgO produced with the amount of oxygen to grams:
.0322 mol MgO (40.3 g) = 1.30 grams of MgO produced
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You will need 3 moles of oxygen if you start with six moles of magnesium. This will allow you to produce 6 moles of magnesium oxide.
Source: (e2020)
One mole of magnesium reacts with one mole of oxygen (1/2 moles of molecular oxygen) to produce MgO. 40.0 g of O2 molecules is 2.5 moles of oxygen atoms (1.25 moles of oxygen molecules). Therefore it reacts with 2.5 moles of Mg which is equivalent to 60.0 g.
I believe it is 0.114g
I just had the same question in my chem homework and this was the answer I got.
UPDATE
It definitely is 0.114g. I just submitted my homework and got the question correct. I would post my equations on here but I think I arrived at the answer in a very unconventional way lol.
Magnesium: 12,06 g
Oxygen: 15,88 g
1.269
That could fit several metals. Iron burns brightly if it is powdered, but doesn't react with water unless oxygen is present. Aluminium is not easy to ignite but can burn very brightly when it does go, and it certainly doesn't react with water at room temperature, and zinc is similar. I suspect the questioner may be wanting the answer magnesium, as that is the one we see burning extremely brightly in the lab. However it does react with water, though rather slowly if the water is cold and the magnesium is covered with its normal oxide layer.
Iron and oxygen in a test tube alone will not react (observed by placing a piece of iron in a test tube with a stopper).Iron and water in a test tube alone will not react (observed by completely submerging a piece of iron in water in a test tube with a stopper).Iron, water and oxygen in a test tube will react (observed by placing a piece of iron in a test tube and submerging half of it with water). The following reaction will take place: iron + water + oxygen ----> hydrated iron(III) oxide. Hydrated iron(III) oxide is the chemical name for rust, which will appear as orange flaking on the piece of iron. To speed up this reaction you can use a bit of salt as a catalyst.
1. Skin and respiratory allergic reactions 2. Baking soda and vinegar 3. Caustic soda exposed to liquid 4. Many different forms of acids exposed to almost everything will cause an immediate chemical reaction
Magnesium is an s-block element and it forms only ionic bonds with other elements.
Two metals that will react with dilute hydrochloric acid are zinc and magnesium.
magnesium oxide (MgO)
Hydrogen gas is released when calcium and water react.
Yes. When magnesium burns in air, it combines with oxygen in the air to form magnesium oxide, MgO.
The formula for magnesium oxide is MgO, showing that each formula unit of magnesium oxide contains one mole of magnesium ions. Therefore, if there is ample oxygen available, 4 moles of magnesium will form 4 moles of magnesium oxide.
Magnesium results in reaction with metals and oxygen. Therefore it stands to reason it reacts with magnesium oxide
Because the among of oxygen would also need to be increased, otherwise the magnesium would have nothing to react with, in order to form more magnesium oxide.
No. Iron cannot displace Magnesium from Magnesium oxide
From the formula, you have 2 atoms of Magnesium combine with one oxygen molecule to form 2 molecules of magnesium oxide. So when 4 magnesium atoms combine with two molecules of oxygen you get 4 magnesium oxide molecules. So from 4 moles of magnesium you get 4 moles of Magnesium oxide.
Any metal that reacts with oxygen will produce a metal oxide. For example, magnesium reacts with oxygen to produce magnesium oxide, and zinc reacts with oxygen to produce zinc oxide. It is helpful to know the general word equation: metal + oxygen -> metal oxide
HI what a retard who would rite hi? lol Magnesium metal is burned in air forming magnesium oxide. This is an interesting oxidation/reduction reaction because it shows the burning of a metal, because the products of the reaction are visible after wards, and because it produces a lot of light.at
Magnesium oxide react with water and magnesium hydroxide is formed.
Yes. Magnesium oxide will react with water to form magnesium hydroxide.