0
To determine the mass of oxygen that combines with 2.00 moles of magnesium, we first need to consider the chemical reaction: 2Mg + O₂ → 2MgO. This indicates that 2 moles of magnesium react with 1 mole of oxygen. Therefore, 2.00 moles of magnesium will react with 1.00 mole of oxygen. The molar mass of oxygen (O₂) is approximately 32.00 g/mol, so the mass of oxygen that combines with 2.00 moles of magnesium is 1.00 mole × 32.00 g/mol = 32.00 grams.
What else can I help you with?
How Calculate the moles of oxygen atom in 9.00 g Magnesium nitrate?
To calculate the moles of oxygen atoms in 9.00 g of magnesium nitrate (Mg(NO₃)₂), first determine the molar mass of magnesium nitrate. The molar mass is approximately 148.31 g/mol. Since each formula unit of magnesium nitrate contains six oxygen atoms, divide the mass of magnesium nitrate by its molar mass to find the moles of magnesium nitrate: ( \frac{9.00 , \text{g}}{148.31 , \text{g/mol}} \approx 0.0607 , \text{mol} ). Finally, multiply the moles of magnesium nitrate by 6 to find the moles of oxygen atoms: ( 0.0607 , \text{mol} \times 6 \approx 0.364 , \text{mol} ).
What is the number of moles of magnesium in a strip of magnesium with a mass of 0.1126g?
To find the number of moles of magnesium, we first need to calculate the molar mass of magnesium, which is 24.305 g/mol. Next, we convert the mass of the strip to moles using the formula moles = mass/molar mass. Plugging in the values, the number of moles of magnesium in the strip is 0.00463 moles.
How do you calculate moles of atoms in 9.00g of magnesium nitrate?
First, determine the molar mass of magnesium nitrate (Mg(NO3)2) by adding the atomic masses of magnesium, nitrogen, and oxygen. Then, divide the given mass (9.00g) by the molar mass to find the moles of magnesium nitrate.
What is the mass of 0.3 moles of magnesium sulfate?
The molar mass of magnesium sulfate (MgSO₄) is approximately 120.37 g/mol. To find the mass of 0.3 moles, you multiply the number of moles by the molar mass: 0.3 moles × 120.37 g/mol = 36.11 grams. Therefore, the mass of 0.3 moles of magnesium sulfate is about 36.11 grams.
What is mass of 1.5 moles of magnesium?
Molar mass of magnesium is 24gmol-1. mass of 1.5 mg mole 36g.
Magnesium oxide decomposes into magnesium and oxygen If 4.03 of magnesium oxide decomposes to form 2.43 of magnesium what mass of oxygen gas is also released in the reaction?
To find the mass of oxygen gas released, you need to calculate the mass of magnesium oxide that contributed to the formation of 2.43g of magnesium. Molar mass of MgO = 40.3g/mol Molar mass of Mg = 24.3g/mol Calculate the moles of Mg formed and use stoichiometry to find the moles of oxygen reacted. Finally, convert the moles of O2 to grams to find the mass of oxygen gas released.
What is the number of moles of magnesium in a strip of magnesium with a mass of 0.1126g?
To find the number of moles of magnesium, we first need to calculate the molar mass of magnesium, which is 24.305 g/mol. Next, we convert the mass of the strip to moles using the formula moles = mass/molar mass. Plugging in the values, the number of moles of magnesium in the strip is 0.00463 moles.
How do you calculate moles of atoms in 9.00g of magnesium nitrate?
First, determine the molar mass of magnesium nitrate (Mg(NO3)2) by adding the atomic masses of magnesium, nitrogen, and oxygen. Then, divide the given mass (9.00g) by the molar mass to find the moles of magnesium nitrate.
How many moles of magnesium are in a sample of 56.4 of magnesium?
To determine how many moles of magnesium are in a sample of 56.4 g, you would first calculate the molar mass of magnesium (about 24.3 g/mol). Then, divide the mass of the sample by the molar mass to obtain the number of moles present (around 2.32 moles in this case).
What is the mass of 0.3 moles of magnesium sulfate?
The molar mass of magnesium sulfate (MgSO₄) is approximately 120.37 g/mol. To find the mass of 0.3 moles, you multiply the number of moles by the molar mass: 0.3 moles × 120.37 g/mol = 36.11 grams. Therefore, the mass of 0.3 moles of magnesium sulfate is about 36.11 grams.
How many grams of magnesium and oxygen react to form 20 g of magnesium oxide?
Balanced Formula:2Mg + O2 --> 2MgOMole ratio:2 : 1 : 2Givens:.486 g oxygen.738 g magnesium24.3 g = atomic mass of magnesium16.0 g = atomic mass of oxygen40.3 g = molecular mass of magnesium oxideFind 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 MgOThere 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--------------------------------------------------------------------------------------------------------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)
Can you calculate the number of moles of magnesium used grams permol?
To calculate the number of moles of magnesium used, you divide the mass of magnesium by its molar mass. The molar mass of magnesium is approximately 24.31 g/mol. For example, if you have 12.15 grams of magnesium, you would divide 12.15 by 24.31 to find that you have 0.5 moles of magnesium.
What is the molarity of 48.6 grams of magnesium?
To find the molarity of 48.6 grams of magnesium, you first need to determine the number of moles of magnesium in 48.6 grams using the molar mass of magnesium (24.305 g/mol). Then, you divide the moles of magnesium by the volume of the solution in liters to get the molarity.
What is the mass of 6.80 moles of magnesium chloride MgCl2 express the value and units?
The molar mass of magnesium chloride MgCl2 is 95.21 g/mol. To find the mass of 6.80 moles, you would multiply the number of moles by the molar mass: 6.80 moles * 95.21 g/mol = 647.868 g. Therefore, the mass of 6.80 moles of MgCl2 is 647.868 grams.
Why does magnesium get heavier when its burned?
When magnesium is burned, it combines with oxygen from the air to form magnesium oxide. This reaction increases the overall weight of the magnesium because the newly formed magnesium oxide has a greater mass than the original magnesium metal due to the added oxygen atoms.
What is mass of 1.5 moles of magnesium?
Molar mass of magnesium is 24gmol-1. mass of 1.5 mg mole 36g.
The number of moles of oxygen in the reaction vessel is?
To calculate the number of moles of oxygen in the reaction vessel, you need to know the amount of oxygen in grams and its molar mass. Then divide the mass of oxygen by its molar mass to obtain the number of moles. The formula to calculate the number of moles is: moles = mass / molar mass.
