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Determine the molecular formula for the unknown if the molecular mass is 60.0 amu and the empirical formula is CH2O.?
Wiki User
∙ 9y ago
C2H4O2=molecular formula, basically you multiply the empirical formula by 2.
Wiki User
∙ 9y ago
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What is the molecular formula for the unknown C3H5O?
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
An unknown sample with a molecular mass of 180.0g is analyzed to yield 40 percent C 6.7 percent H and 53.3 percent O What is the empirical formula and the molecular formula of this compound?
ch2o and c6h12o6
The combustion data for an unknown compound containing carbon hydrogen and oxygen was analyzed and the empirical formula for the unknown was found to be C3H5O The molar mass of the unknown was found?
C6h12o3
What is HRMS weight?
High resolution mass spectrometry weight. It is used to narrow down the molecular formula of an unknown molecule.
What is the molecular formula for the unknown C2H4O?
That is a molecular formula.I can't off the top of my head think of any compound with that molecular formula, though. It's not methoxyethane or a propanol, because it's got one too few hydrogen atoms. It's not propanone or cyclopropanol or oxetane or a propenol, because it's got one too many hydrogen atoms.
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 the unknown C3H5O?
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
An unknown sample with a molecular mass of 180.0g is analyzed to yield 40 percent C 6.7 percent H and 53.3 percent O What is the empirical formula and the molecular formula of this compound?
ch2o and c6h12o6
What experimental evidence about a new compound must be known before its formula can be determined?
In a laboratory the mysterious compound is initially weighted and then will undergo reactions to be broken down into its constitutes. The individual elements or other compounds will be determined and then be weighed. Using information known on those elements and compounds, scientist will be able to discover the molar mass for each of them. Using the equation n = m/ M (mols = mass over (divided by) molar mass) they are able to determine the moles for each of the elements/compound. the unknown compound will be determined by the product with the lowest number of moles (closest to zero) have its number dividing all the other products (see it as for each mole of that element/compound there will be a requirement of N amount of moles from the other product(s)). This result will give the ratios for the constitutes in the unknown compound (the subscripts). This formula here will be the empirical formula (which may not be the actually formula for the reaction, it is the simplest ratio). Let the unknown compound be X. A and B are the resulting constitutes of X. After determining the correct mols of A and B where B moles is closest to 0, we divide Amols by Bmols and the resulting number is near a whole number. This number will be the subscript for A and will determine the empirical formula of X. If Bmols = 1 and Amols = 2 the unknown compound will have the empirical formula of A2B.
How do you find the molecular and empirical formulas?
There is no easy answer to this question. First, it depends what information you have to start with. Do you have the name? Do you know what elements are found in the substance?If you are given the name of the molecule, you can often find the molecular structure of that compound by simply using the Google search engine online and searching for the name. It is often give you the answer! There are certain compounds that you should be familiar with also. Also, there is a set of official rules that determine the name of a specific compound, so that if you have the formula, you can name it correctly, and if you have the name, you can determine the formula. Unfortunately, many chemicals also have common names that do not follow these rules, and you just have to memorize those, or look them up with Google.See the Related Questions and Web Links to the left for some information about how compounds are named and how to go from a formula to a name and vice versa.
The combustion data for an unknown compound containing carbon hydrogen and oxygen was analyzed and the empirical formula for the unknown was found to be C3H4O The molar mass of the unknown was fou?
C6h12o3
The combustion data for an unknown compound containing carbon hydrogen and oxygen was analyzed and the empirical formula for the unknown was found to be C3H5O The molar mass of the unknown was found?
C6h12o3
How do you find the empirical formula for the burning of an unknown hydrocarbon when you aren't given the amount of CO2 produced?
calculate the number of moles of carbon and of the other and by number of moles you can proceed further. the next step is that you divide by the smallest ratio. hence obtaining your empirical formula.
If an unknown hydrate MgCl2 and bullxH2O has a molecular mass of 203.30 gmol what is the numeric value of x in the formula?
This formula is for magnesium chloride hexahydrate: MgCl2.6H2O.
Which colligative property is better one to determine molecular mass of an unknown solute in a soution?
Probable the boiling point elevation.
What is HRMS weight?
High resolution mass spectrometry weight. It is used to narrow down the molecular formula of an unknown molecule.
What is the molecular formula for the unknown C2H4O?
That is a molecular formula.I can't off the top of my head think of any compound with that molecular formula, though. It's not methoxyethane or a propanol, because it's got one too few hydrogen atoms. It's not propanone or cyclopropanol or oxetane or a propenol, because it's got one too many hydrogen atoms.
