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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)
What else can I help you with?
What metal burns brightly but doesn't react with water?
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.
What happens to iron placed in a test tube with a stopper?
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.
What are some fast chemical reactions?
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
When magnesium and chlorine react what type of bond is formed?
Magnesium is an s-block element and it forms only ionic bonds with other elements.
What two metals will react with dilute hydrochloric acid?
Lots of metals will react with dilute hydrochloric acid; anything above hydrogen in the activity series should do so.
How many grams of magnesium oxide and oxygen react to form 20.0 grams of magnesium oxide?
To determine the amount of oxygen, we first find the amount of magnesium by subtracting the given 20.0 grams of magnesium oxide from the total. Given that the molar mass of magnesium oxide is 40.3 g/mol and that of magnesium is 24.3 g/mol, we calculate the amount of oxygen by adjusting accordingly. This process gives us the weight ratio of magnesium oxide to oxygen.
In the reaction between magnesium and oxygen the mass of magnesium and oxygen was 2.5 grams how much magnesium oxide was formed?
The molar mass of magnesium is 24.3 g/mol and oxygen is 16 g/mol. The balanced equation is 2Mg + O2 -> 2MgO. Since magnesium and oxygen react in a 1:1 ratio, all magnesium reacted to form magnesium oxide. Therefore, 2.5 grams of magnesium oxide was formed.
What do you get when you react magnesium wth oxygen and heat?
magnesium oxide (MgO)
How can one make magnesium oxide?
To make magnesium oxide, one can heat magnesium metal in the presence of oxygen. This process, called thermal decomposition, causes the magnesium to react with oxygen and form magnesium oxide.
What does magnesium and oxygen equal?
Magnesium and Oxygen equals Magnesium Oxide (2MgO) 2Mg + O2 --> 2MgO
Do iron and magnesium oxide react chemically?
Iron and magnesium oxide can react chemically to form iron(II) oxide and magnesium metal. The reaction occurs when iron is heated with magnesium oxide in a high temperature environment, leading to the transfer of oxygen from magnesium oxide to iron.
What is the gas that reacts with calcium and magnesium when they burn?
Hydrogen gas is released when calcium and water react.
Can magnesium create oxygen?
Magnesium does oxidize. That is why magnesium is often found on earth with a thin layer of Magnesium Oxide (MgO). For this reason when using magnesium in experiments you must always sand it to remove the oxide layer.
Does magnesium react to oxeygen?
Yes. When magnesium burns in air, it combines with oxygen in the air to form magnesium oxide, MgO.
Is argon or magnesium more reactive with oxygen?
Argon is a Non-Reactive Element. Magnesium is a very Reactive Element. Magnesium will react violently when ignited in an Oxygen rich environment.
What happens when you magnesium is heated in air?
When magnesium is heated in air, it will react with oxygen to form magnesium oxide. This reaction produces a bright white light and a lot of heat, which is characteristic of a vigorous combustion reaction.
Why does the amount of Magnesium Oxide not increase when the amount of magnesium is increased?
When magnesium reacts with oxygen to form magnesium oxide, the ratio of magnesium to oxygen is fixed according to the chemical equation (2Mg + O2 -> 2MgO). This means that the amount of magnesium oxide that can be formed is limited by the amount of oxygen available, not by the amount of magnesium present. So, increasing the amount of magnesium does not lead to a corresponding increase in magnesium oxide produced.
