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First start with what you know to find the total moles.
Mn = 54.94g
O = 16g
54.94g * 2 = 109.88g
16 * 3 = 48g
Add these to get the weight of Mn2O3 which = 157.88
Divide 157.88 / 286 to get your total moles present, which = .552 Mols
To find moles Mn, divide 54.94 by the total weight which is 157.88. This gives you your moles Mn, which is .348 mols. Since you have Mn2, multiply that number by 2 to get .695 mols
Now you can divide Mol(Mn) by your total moles (.552) to get your moles Mn
So .695 mol Mn2O3 / .552 mol Mn = 1.1 Mol Mn
since 1.1 * 54.94 = 60 pct of the Molar Mass, this number makes sense since there is more Mn than O, the proportion seems correct.
hope this helped!
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To find the number of moles of Mn atoms in KMnO4, you first need to calculate the molar mass of KMnO4 (158.034 g/mol). Next, find the molar mass of Mn (54.938 g/mol) in KMnO4. Then, find the number of moles of Mn atoms by dividing the mass of KMnO4 by the molar mass of Mn.
16.1201 grams KMnO4 (1 mole KMnO4/158.04 grams)(1 mole Mn/1 mole KMnO4)(6.022 X 1023/1 mole Mn)(1 mole Mn atoms/6.022 X 1023)
= 0.102000 moles of manganese atoms
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Note that Avogadro's number is actually over itself in a form of one, so you do not need to go all the way in this, a formal set-up.
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How many grams of potassium permanganate KMnO4 are in 2.55 moles?
The compound potassium permanganate has chemical formula KMnO4 Molecular mass of KMnO4 = 39.1 + 54.9 + 4(16.0) = 158.0 Mass of KMnO4 = amount of KMnO4 x Molecular mass of KMnO4 = 2.55 x 158.0 = 403g
How many grams of potassium permanganate are in 2.20 moles?
To calculate the grams of potassium permanganate in 2.20 moles, you would need to know the molar mass of potassium permanganate. The molar mass of potassium permanganate (KMnO4) is about 158.034 g/mol. So, 2.20 moles of KMnO4 is equal to 2.20 moles x 158.034 g/mol = 347.67 grams of potassium permanganate.
How many moles of phosphorus atoms are in 100 grams of P4S10?
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A certain amount of hydrogen peroxide was dissolved in 100 ml of water and then titrated with 1.68m kmno4 how much h2o2 was dissolved if the titration required 22.3 ml of the kmno4 solution?
To calculate the amount of hydrogen peroxide (H2O2) dissolved, you can use the equation: moles of KMnO4 = moles of H2O2. Firstly, calculate the moles of KMnO4 (given concentration and volume). Then, use the balanced chemical equation to determine the moles of H2O2, as they have a 1:1 stoichiometric ratio. Finally, convert moles of H2O2 to grams using the molar mass to find the amount dissolved in the solution.
How many atoms does 100 grams of gold have?
To find the number of atoms in 100 grams of gold, you would first calculate the number of moles using the molar mass of gold (197 grams/mol). Then, use Avogadro's number (6.022 x 10^23 atoms/mol) to convert moles to atoms. So, approximately 3.01 x 10^23 atoms of gold are present in 100 grams.
How many grams of potassium permanganate KMnO4 are in 2.55 moles?
The compound potassium permanganate has chemical formula KMnO4 Molecular mass of KMnO4 = 39.1 + 54.9 + 4(16.0) = 158.0 Mass of KMnO4 = amount of KMnO4 x Molecular mass of KMnO4 = 2.55 x 158.0 = 403g
How many grams of potassium permanganate are in 2.20 moles?
To calculate the grams of potassium permanganate in 2.20 moles, you would need to know the molar mass of potassium permanganate. The molar mass of potassium permanganate (KMnO4) is about 158.034 g/mol. So, 2.20 moles of KMnO4 is equal to 2.20 moles x 158.034 g/mol = 347.67 grams of potassium permanganate.
How to convert grams to atoms?
To convert grams into atoms, you have to convert them into moles first. Get the molar mass and multiply it by the number of moles to get the atoms.
How many moles on 738 grams or iron and how many atoms?
738 grams iron are equivalent to:- 12,626 moles- 76.10e23 atoms
How many moles of KMnO4 are present in 75.0 mL of a 0.0950 M solution?
To find the moles of KMnO4 in the solution, we first need to calculate the number of moles in 75.0 mL. Moles = Molarity x Volume (in liters) Moles = 0.0950 mol/L x 0.0750 L Moles = 0.007125 mol Therefore, there are 0.007125 moles of KMnO4 present in 75.0 mL of a 0.0950 M solution.
How many atom of oxygen are in 17.7g of potassium promangenate?
To find the number of oxygen atoms in 17.7g of potassium permanganate (KMnO4), we need to use Avogadro's number and the molar mass of KMnO4. The molar mass of KMnO4 is 158.034 g/mol. Thus, 17.7g of KMnO4 is equal to 0.112 moles. In one mole of KMnO4, there are 4 oxygen atoms. Therefore, in 17.7g of KMnO4, there are 0.112 moles x 4 = 0.448 moles of oxygen atoms. Finally, using Avogadro's number (6.022 x 10^23 atoms/mol), we find that there are approximately 2.7 x 10^23 oxygen atoms in 17.7g of KMnO4.
What is the number of oxygen atoms in 90 g of potassium permanganate?
The molar mass of potassium permanganate (KMnO4) is 158.034 g/mol. The molar ratio between oxygen atoms and KMnO4 is 4:1. Therefore, in 90 g of KMnO4, there are 90/158.034 moles of KMnO4. Multiply this by 4 to find the number of moles of oxygen atoms, then multiply by Avogadro's number to find the number of oxygen atoms.
How many moles of atoms are in 8 grams of carbon 13?
0,666 moles
How do you convert 2.2 grams in to atoms in nitrogen?
To convert grams to atoms, you need to first convert grams of nitrogen to moles using its molar mass (14.01 g/mol). Then, use Avogadro's number (6.022 x 10^23 atoms/mol) to convert moles to atoms. So, for 2.2 grams of nitrogen: Convert grams to moles: 2.2 g / 14.01 g/mol = 0.157 moles. Convert moles to atoms: 0.157 moles x 6.022 x 10^23 atoms/mol = 9.46 x 10^22 atoms of nitrogen.
How do you convert atoms to grams with Avogadro's number?
To convert atoms to grams using Avogadro's number, you first need to determine the number of moles of atoms by dividing the number of atoms by Avogadro's number (6.022 x 10^23). Then, you can use the molar mass of the element to convert moles to grams using the formula: grams = moles x molar mass.
How many moles of atoms are in 4.5 grams of Cu?
4,5 moles of copper are equivalent to 285,957 g.
How many moles of atoms are there in 75.10 grams of chlorine?
To find the number of moles of atoms in 75.10 grams of chlorine, you need to first determine the molar mass of chlorine. Chlorine has a molar mass of approximately 35.45 g/mol. Next, you can use the formula Moles = Mass / Molar Mass to calculate the moles of chlorine atoms in 75.10 grams. This would result in approximately 2.12 moles of chlorine atoms.
