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molar mass over grams of element
The 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.
Dahlia Miller
Wiki User
∙ 14y agoAll you really need to do is balance the chemical equation, then divide by the greatest common factor to reduce all the coefficients to their lowest whole number value.
so a random equation with the coefficients of 3 3 -> 9
you need to divide the coefficients by 3 to make the formula 1 1 -> 3
1 1 -> 3 is the empirical formula because all the numbers are at the lowest possible whole number value.
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Do you simplify empirical formula ratios?
Yes. An empirical formula is the simplest ratio of the elements in a compound.
What does an empirical formula show?
the empirical formula of a compound tells you the proportions of the elements in the compound. with that information you can make some inferences about the identity of the compound. for example a compound with an empirical formula CH4 tells us that for every carbon atom there are four hydrogen atoms. this means that the compound is methane because no other hydrocarbon can have these roportions (try drawing the lewis structure for C2H8, which doesnt exist. you cant!)
What is represented in the empirical formula of a compound?
The absolute ratio of the component elements.
Why rubber have the same empirical formula as its monomer?
An empirical formula only takes into account the proportions of the elements in a compound. The proportion of elements in a polymer might be the same or similar as the proportion in the monomer from which it is made.
How do you know if a formula is an empirical formula?
An empirical formula has no data about the structure of a compound.
Do you simplify empirical formula ratios?
Yes. An empirical formula is the simplest ratio of the elements in a compound.
What does an empirical formula show?
the empirical formula of a compound tells you the proportions of the elements in the compound. with that information you can make some inferences about the identity of the compound. for example a compound with an empirical formula CH4 tells us that for every carbon atom there are four hydrogen atoms. this means that the compound is methane because no other hydrocarbon can have these roportions (try drawing the lewis structure for C2H8, which doesnt exist. you cant!)
The lowest whole number ratio of the elements in a compound is called the?
An empirical formula refers to the chemical formula that indicates the simplest ratio of atoms in a compound. Two different compounds may have the same empirical formula.
Which formula of a compound has the smallest whole-number mole ratio of elements?
the empirical formula
What is represented in the empirical formula of a compound?
The absolute ratio of the component elements.
What is the empirical formula of the compound that is 75 carbon and 25 hydrogen?
The empirical formula of a compound is the simplest whole number ratio of the elements in the compound. In C75H25, the ratio of carbon to hydrogen is 75:25, which is equal to 3:1. Thus, the empirical formula is C3H.
Explain Why is H2O2 is not the empirical formula of hydrogen peroxide?
An empirical formula is the lowest ratio of elements in a compound. So since H2O2 can be reduced to HO (H1O1), that is the empirical formula. The molecular formula is H2O2.
What is the emperical formula for C6H12?
Empirical formula gives the proportions of the elements present in a compound but not the actual numbers or the arrangement of atoms. The empirical formula for C6H12 is CH2.
What is meant by law of constant proportion and how is this law applied in experiment empirical formula of a compound?
The law of constant proportion states that a pure chemical compound always contains exactly the same proportion of elements by mass.This information, together with the atomic masses of the elements in the compound enable scientists to determine the formula of a compound.
Does CO2 and SO2 have the same empirical formula?
No, Compounds with the same empirical formula have the same elements in the same ratio. SO2 and CO2 contain different elements. SO2 is a compound of sulfur and oxygen while CO2 is a compound of carbon and oxygen.
What is the empirical formula for C9H20?
C9H2O The empirical formula indicates the simplest whole-number ratio of elements in a compound. The formula C9H2O already has the simplest whole-number ratio of elements.
Why rubber have the same empirical formula as its monomer?
An empirical formula only takes into account the proportions of the elements in a compound. The proportion of elements in a polymer might be the same or similar as the proportion in the monomer from which it is made.
