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To solve this first the molar mass of Mg is needed (look at a Periodic Table).
(Mg=23.0g/mol)
Then convert the mols to grams as follows:
(3.65 mol Mg) x (23.0 g/mol Mg) = 84.0 g Mg
The mol units cancel in the conversion leaving only the gram units and the ammount in grams.
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∙ 14y ago
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How many moles are in 13.2 grams of magnesium?
For this you need the atomic mass of Mg. Take the number of grams and divide it by the atomic mass. Multiply by one mole for units to cancel. Mg= 24.3 grams35.0 grams Mg / (24.3 grams) = 1.44 moles Mg
How much ferrous ascorbate equivalent to elemental iron?
Molar mass of Ferrous ascorbate is 408 g/mol Atomic mass of Fe is 55.8 1 mol of Ferrous ascorbate is 408 g; 55.8 g of that is Fe2+. So, 100 mg of Ferrous ascorbate will have 100x(55.8/408)=13.7 mg of elemental Fe
What is the molar mass of sodium oxalate?
molar mass is 318 g/mol (2X27)+3(2X12+4X16)=318g/mol
What is the formula mass of CS2?
Formular mass is the sum of the atomic mass' of the corresponding elements. C = 12.011 g/mol S = 32.06 g/mol 12.011 g/mol + 2(32.06 g/mol)= 76.131 g/mol Therefore, the formula mass of CS2 is 76.131 g/mol.
What mass of hcl is consumed by the reaction of 2.50 moles of magnesium in equation mg plus hcl equals mgcl2 plus h2?
5.05 g/mol
What is the mass of 0.229 mol Mg?
Magnesium has the molar mass of 24.305 grams per mole. 0.229 moles of Mg has a mass of about 5.57 grams.
What is the molar mass of mg o?
The molar mass of Mg O = 40.3044 g/mol
What is the molar mass of MgS?
The molar mass of Mg = 24.305 g/mol
What is the formula mass of magnesium nitrite octahydrate?
Mg(NO3)2Mg = 24.312N = 28.026O = 96.00_________+Mol=148.33 g/mol
What is the formula mass of magnesium perchlorate?
Mg(ClO4)2 with molar mass 223.206 g/mol
When 4.00g of magnesium burns the theoretical yield of magnesium oxide is?
2 Mg (s) + O2 (g) → 2 MgO (s)4.00mg x 1 mol Mg/24.305 x 2 mol MgO/2 mol Mg x 40.305g MgO/1 mol MgO==6.63g4.00g- Given24.305g- Atomic Mass of Magnesium40.305g- Atomic Mass of Magnesium Oxide
How many milliliter is 80mg?
ml is a size for an amount of fluid. mg is a size for a mass. You can convert ml in mg if you know the material your dealing with. Then you need the periodic system of elements and calculate the molecular weight of you material knowing; mol(n) = mass(mg) / molecular weight(g) then calculate the volume (ml) =mol(n) / concentration(c)
What is the molar mass for tribromine oxide?
The molar mass of tribromine oxide (Br3O) can be calculated by adding up the atomic masses of its constituent atoms. The molar mass of bromine (Br) is approximately 79.90 g/mol, and the molar mass of oxygen (O) is approximately 16.00 g/mol. Therefore, the molar mass of tribromine oxide is approximately 249.70 g/mol.
3 atoms of magnesium combine with 2 atoms of nitrogen.What will be the weight of magnesium which combines with 1.86g of nitrogen?
Equation: 3Mg + N2 → Mg3N2 3mol Mg combines with 1mol N2. Molar mass N2 = 28.014g/mol 1.86g N2 = 1.86/28.014 = 0.0664mol N2 This will require 0.0664*3 = 0.1992mol Mg Molar mass Mg = 24.305g/mol 0.1992mol Mg = 24.305*0.1992 = 4.84g Mg required.
Calculate the number of moles present in each of the following samples.6.684e13 pg of fluorine atoms 2.435e6 mg of magnesium 3.2e-3 kg of lead(II) chloride 6.684e-5 Mg of fluorine 2.31e-9 Gg of carbon disulfide 4.91e9 ng of aluminum sulfate?
umber of Moles= Molar Mass (in g/mol) Mass (in grams) First, you'll need to know the molar mass of the substance in question. Here are the calculations for each sample: 6.684e13 pg of fluorine atoms: Molar mass of fluorine (F) = 19 g/mol Mass in grams = 6.684e13 pg = 6.684e-6 g Number of moles = (6.684e-6 g) / (19 g/mol) ≈ 3.52e-7 moles 2.435e6 mg of magnesium: Molar mass of magnesium (Mg) = 24.305 g/mol Mass in grams = 2.435e6 mg = 2.435 g Number of moles = (2.435 g) / (24.305 g/mol) ≈ 0.1001 moles 3.2e-3 kg of lead(II) chloride: Molar mass of lead(II) chloride (PbCl₂) = 207.2 g/mol Mass in grams = 3.2e-3 kg = 3200 g Number of moles = (3200 g) / (207.2 g/mol) ≈ 15.45 moles 6.684e-5 Mg of fluorine: Molar mass of fluorine (F) = 19 g/mol Mass in grams = 6.684e-5 Mg = 6.684e-5 g Number of moles = (6.684e-5 g) / (19 g/mol) ≈ 3.52e-6 moles 2.31e-9 Gg of carbon disulfide: Molar mass of carbon disulfide (CS₂) = 76.143 g/mol Mass in grams = 2.31e-9 Gg = 2.31e15 g Number of moles = (2.31e15 g) / (76.143 g/mol) ≈ 3.03e12 moles 4.91e9 ng of aluminum sulfate: Molar mass of aluminum sulfate (Al₂(SO₄)₃) = 342.15 g/mol Mass in grams = 4.91e9 ng = 4.91e-6 g Number of moles = (4.91e-6 g) / (342.15 g/mol) ≈ 1.43e-8 moles
What mass of magnesium will react with 497.1 mL of oxygen at 157.6C and 0.959 ATM?
The balanced chemical reaction equation is2 Mg + O2 ----> 2 MgOIdeal gas law gives oxygen moles :n = PV/RT = ( 0.959 atm ) ( 0.4971 L )/ ( 0.08205 L - atm/mol - K ) ( 157.6 + 273.2 K )n = 0.01349 mole O2Two moles og Mg are needed for each mole of O2.moles Mg needed = ( 2 ) ( 0.01349 ) = 0.02697 moles MgMass of Mg = ( mols of Mg ) ( M of Mg )Mass of Mg = ( 0.02697 mol ) ( 24.31 g Mg/mol Mg ) = 65.57 grams of magnesium
How many molecules of carbon tetrachloride are in 6.32 mg of that compound?
1. Convert 6.32 mg to grams.6.32 mg x 1g/1000 mg = 0.00632 g2. Determine the molar mass for CCl4.The molar mass is 153.82g/mol (Wikipedia)3. Convert given mass to moles using the molar mass.0.00632 g CCl4 x 1 mol CCl4/153.82 g CCl4 = 4.11 x 10^-5 mol CCl44. Convert moles to molecules.One mole of molecules is 6.022 x 10^23 molecules.4.11 x 10^-5 mol CCl4 x 6.022 x 10^23 molecules CCl4/mol CCl4 = 2.47 x 10^19 molecules CCl4
