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Answered 2012-08-19 22:49:10
No, but by knowing the molecular formula, the molar mass can be calculated.
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How does one determine a molecular formula from the empirical form?
molar mass of unknown/molar mass of empirial = # of empirical units in the molecular formula. Example: empirical formula is CH2O with a molar mass of 30. If the molar mass of the unknown is 180, then 180/30 = 6 and molecular formula will be C6H12O6
What is the molecular formula for C3H5O The molar mass is 114.15gmol?
Empirical formula = C3H5O Molar mass of empirical formula = 3(12.01)+5(1.008)+1(16) = 57.07 Molar mass of molecular fomula = 114.15 n = Molar mass of molecular fomula/Molar mass of empirical formula = 114.15/57.07 n = 2 Molecular formula = n(empirical formula) Molecular formula = 2(C3H5O) = C6H10O2 Check: 6(12.01)+10(1.008)+2(16)= 114.14
How do you calculate Molecular formula from empirical formulaWhat could you do with that information to determine that the empirical and molecular formulas are related to one another by a factor of 6?
In order to find molecular formula from empirical formula, one needs to know the molar mass of the molecular formula. Then you simply divide the molar mass of the molecular formula by the molar mass of the empirical formula to find out how many empirical formulae are in the molecular formula. Then you multiply the subscripts in the empirical formula by that number.
How to calculate Molecular formula from empirical formula?
If you know the molar mass of the compound, you have to calculate the mass of the empirical formula and divide the molar mass of the compound by the mass of the empirical formula in order to find the ratio between the molecular formula and the empirical formula. Then multiply all the atoms by this ratio to find the molecular formula!
What are the steps in writing a molecular compound?
If you mean to find its molecular formula: 1. First you must obtain the empirical formula. Find the molar mass of the empirical formula. 2. The molar mass of the entire molecule must be given or its molecular formula cannot be find. 3. Put the molar mass given over the molar mass of the empirical formula. 4. Use this number (kind of like a scaler) to multiply by the entire empirical formula. This is the molecular formula.
How does one determine a molecular formula from the empirical formula?
molar mass over grams of elementThe above answer is somewhat correct. In order to find the molecular formula when given the empirical formula, you must first find the molar mass of the empirical formula.MOLAR MASS# atoms element A x atomic mass element A (periodic table) = mass A# atoms element B x atomic mass element B (periodic table) = mass B... etc.Add up all of the mass values found above and you have the molar mass.Then, after you have found the empirical formula's molar mass, you divide the molar mass of the molecular formula by the empirical formula's molar mass (solving for n).MOLECULAR FORMULA EQUATION: N (Empirical formula) (read as N times empirical formula) where:N = Molar mass substance---- Molar Mass emp. form.
What is the relationship between the formula weight of a substance and its molar mass?
Molar mass is the mass of particles in one mole of a substance. Molar mass is equal to atomic/ molecular/ formula mass in amu. Formula mass is in atomic mass unit while molar mass is in grams .
How dos one determine the molecular formula from the empirical formula?
molar mass/ empirical formula mass
What information is needed to determine a molecular formula?
the empirical formula and the molar mass
Molar mass of acetone?
Acetone has the molecular formula of CH3COCH3 (C3H6O) and a molar mass of 58.08 g/mol.
What is the molar mass of Potassium Alum?
Molar mass = 258.21 g/mol Molecular formula = KAl(SO4)2
What is the molecular formula of compound CH2 with a molar mass of 42.0?
The empirical formula CH2 has a formula mass of 14, and 42.0/14 = 3. Therefore, the molecular formula is C3H6.
What is relationship between the formula weight of a substance and its molar mass?
Formula mass is in atomic mass unit (amu) while molar mass is in grams (g).Molar mass is the amount of particles (atoms/molecules) in one mole of a substance.Molar mass is equal to atomic/ molecular/ formula mass in u.
What is the molecular formula of a compound that has a molecular mass of 46 and an empirical formula of No2?
The molecular formula is the same as the empirical formula, NO2. The compound NO2 has a molar mass of 46g/mol, so the empirical and molecular formulas are the same.
What is the molecular formula of a compound whose empirical formula is CH3 and whose molar mass is 30 gmol?
The molecular formula of ethene is C2H6.
The molecular mass of the compound is 132 amu What is molecular formula?
C6H12O3 is a molecular formula that contains 54.5% C, 9.1% H, and 36.4% O and has molar mass of 132 amu.
What is the molecular formula of dicyclohexyl if its molar mass is 200 grams?
Dicyclohexyl chemical formula is C12H22 and the molecular weight is 166,3031 (not 200).
Styrene has the empirical formula CH. It has a molar mass of 104 g. What is the multiplier to get the molecular formula?
This is 8; the chemical formula is C6H5CH=CH2 and the molar mass is 104,15 g.
What is the molecular formula of MSG if molar mass is 169 grams?
The chemical formula of monosodium glutamate is C5H8NO4Na.
What is the molar mass of nitrate?
The nitrate ion, formula NO3− , has a molecular mass of 62.0049 g/mol.
What is the molar mass of silver phosphate?
The formula is Ag3PO4.See the Related Questions link to the left to solve for the molar mass (same as molecular weight).
What is the molecular formula of a compound that has the molar mass of 207?
In most cases one cannot identify a compound by its molar mass. There are too many possibillities.
How does one determine a molecule formula from the empirical formula?
The density or some other information must be given that allow you to find the molar mass. Calculate the empirical formula mass. Divide molar mass by empirical formula mass. This answer is multiplied by all subscripts of the empirical formula to get the molecular formula.
What is the atomic molecular or formula unit mass expressed in grams?
This is the molar mass or atomic weight expressed in grams.
How do you find the molecular formula from molar mass?
You'll need a lot more information about this substance than (only) this molar mass to find its formula, though it might help to confirm your findings.
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