Chemistry
Elements and Compounds

# What is the molecular formula of a compound with an empirical formula of CH?

###### Wiki User

The simplest compound is acetylene, C2H2.

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## Related Questions

### What the empirical formula for c12h12?

CH will be the empirical formula and C12H12 will be the molecular formula

### Whatis the empirical formula of benzene if it's molecular formula is C6H6?

Empirical formula is the molecular formula in its simplest ratio. So the empirical formula of benzene is CH.

### What is the empirical formula for benzene?

the molecular formula of benzene is C6H6 the empirical formula of benzene is CH.

### Contrast molecular formula and empirical formula?

A molecular formula specifies the exact number of atoms of each element in one molecule of a compound, but an empirical formula shows only enough of the atoms of the element with the smallest number of atoms in the compound to specify the proportions between or among each kind of atom in the compound. The subscript numbers after each atomic symbol in a molecular formula will therefore be an integral multiple of the subscript numbers in the empirical formula for the same compound. Since 1 is an integer, the molecular formula may be the same as the empirical formula, as it is for water, for example. A contrasting example is benzene, for which the molecular formula is C6H6, while the empirical formula is simply CH.

### What is the difference between empirical and molecular formula?

Empirical formulas show the simplest whole number ratio of these atoms. Molecular formulas show the actual ratio of atoms in the compound. For example: Glucose is the a simple sugar whose molecular formula is C6H12O6 Its empirical formula would be CH2O which would be its molecular formula divided by the smallest whole number. Chemical Name Hydrogen peroxide Empirical Formula HO Molecular Formula H2O2 chemical name Benzene empirical formula CH molecular formula C6H6 remember that several compounds can have the same empirical formula

### Two molecules have different molecular formulas but the same empirical formula?

Empirical formulaCompoundMolecularformulaCH (92.2% C; 7.8% H)acetyleneC2H2benzeneC6H6CH2 (85.6% C; 14.4% H)ethyleneC2H4buteneC4H8CH2O (40.0% C; 6.7% H;53.3% O)formaldehydeCH2Oacetic acidC2H4OglyceraldehydeC3H6O3The molecular formula may be a multiple of the empirical formula.

### What is an empirical formula for acetylene?

The empirical formula for acetylene (C2H2) is CH.

### Chemical formula molecular formula and formula unit?

The molecular formula is the formula of a discrete (single) molecule of the substance.The formula unit is generally defined in the same way as the empirical formula, which is the simplest whole number ratio of the elementsChemical formula includes both molecular and formula units.Examples:-Benzene a molecule consisting of a ring of 6 carbon atoms each with a hydrogen attached:-molecular formula C6H6formula unit CH (which is the result you would get if you analysed the compound and worked out the atomic ratio of carbon to hydrogen.NaCl is ionic so you cannot write a molecular formula you express the compound simply as the formula unit (empirical formula)- in its simplest case NaCl (never Na2Cl2 or some such)How can you tell whether a formula is molecular formula or a formula unit. Well if the formula could be "simplified" like benzene C6H6 could be simplified to CH then you know its a molecular formula. Something like SO2 and TiO2, well you need to be told. (SO2 is molecular, TiO2 is ionic)

### What do empirical formulas determine?

Empirical formulas determine the ratio of atoms of different elements within a chemical compound and can be derived by dividing the number of each element's atoms by their greatest common factor. They do not necessarily describe the full chemical makeup of a molecule. For example, benzene has the formula C6H6 but its empirical formula is simply CH because there is one hydrogen atom for every carbon atom. Glucose has the molecular formula of C6H12O6; its empirical formula is CH2O. Because the molecular formula for water, H2O, cannot be further simplified (empirical formulas have only whole numbers) H20 is also its empirical formula.

### If a compound has an empirical formula of CH and a mass of 26 grams what is the molecular formula?

First, add together the atomic masses of the elements:C- 12.0H- 1.00_______13.0Now put it into the following formula:x(added atomic mass) = molecular weight13.0x = 26.0Then find xx= 2Take the x value and multiply it with the number of atoms in the empirical formula/C1H1 * 2 = C2H2The final answer is the actual molecular formula C2H2 or Acetylene

### If the molar mass of this compound is about 78 g and empirical formula is CH. what is its molecular formula?

First, find the atomic masses of the elements and add them together:C - 12.0H - 1.00_____13.0 gUse this formula to find the actual molecular formula:x(added atomic mass) = molar mass of compoundx(13.0) = 78.0 gDivide the added atomic mass to get x = #:x = 6Take your x value and multiply the number of atoms in the empirical formula by it:C1H1 * 6 = C6H6The final result is the actual molecular formula.

### What is an empirical formula c4h8 c2h4 ch c2h2?

The empirical formula for C4H8 would be CH2. For C2H4 it would be CH2 and for C2H2 it would be CH.

### Empirical formula of C6H6?

Since the empirical formula is the lowest whole number formula, the empirical formula for C6H6 would be CH (divide both C and H by 6).

### What is the molecular formula of benzene if the empirical formula is CH and the approximate molar mass is 78 g mol?

the mass of 1.0 mole of the simplest ratio 'molecule' (CH) is (C) 12 + (H) 1 = 13 g for 1.0 mole (CH)78 g = 1 mole (CxHx) , so x = 78 / 13 = 6 so the molecular formula is C6H6

### What is the formula for ethyl alcohol?

The molecular formula is C&#8322;H&#8325;OH. The structural formula is CH&#8323;CH&#8322;OH.

### What is the difference between the empirical and chemical formulas?

In an empirical formula, at least one of the element symbols must have a subscript (possibly including the implicit subscript "1" that is presumed when there is no explicit subscript) that is a prime number. The subscripts in a chemical formula must correspond to the actual number of atoms of each element present in a molecule or formula unit of the compound and therefore may be any integral multiple of the subscripts in the empirical unit. For example, the empirical formula of both acetylene (also called "ethyne") and benzene is CH, but the chemical formulas are C2H2 for acetylene and C6H6 for benzene. The empirical formula uses as subscripts the lowest whole number ratio of atoms combined in the substance. Many ionic substances do not have a molecular formula because they form a crystal lattice and not individual molecules. Molecular compounds may have both. The molecular formula shows the actual number of combined atoms in a single molecule.

### What is the name for CH?

The is no compound with the formula CH. CH4 is methane.

### What is the empirical formula for ethyne?

the formula for the compound is C2H2 to express this in its simplest form devide each atom be a common number, here we can see that there is 2 of each atom so an emperical formula would be CH

### What is the difference between a formula unit and a molecular formula?

Molecular formulas refer to covalently bonded substances (molecules). The molecular formula shows the exact number of atoms of each element present in the smallest unit of the substance. For example, benzene is a molecule composed of six carbon and six hydrogen atoms and has a formula C6H6.A formula unit refers to ionic compounds and network solids (both are crystals). Because in ionic crystals each ion is electrostatically bonded to every oppositely charged nearest neighbor, the ions in the whole crystal can be thought of as part of one single bonded entity. It is the same with network solids except that the bond is covalent. So rather than using a formula that shows all of the elements present in any one particular crystal, the formula unit shows the elements present in the smallest whole number ratio. In a common example, sodium chloride, the formula unit is NaCl since sodium and chloride are present in the crystal in a 1:1 ratio. The NaCl crystal itself, however, would have >>quintillians each of Na and Cl if it was big enough to see with the unaided eye. It is important to not confuse formula units with emprical formulas. Emprical formulas are simply the lowest whole number ratio of elements in a compound. Formula units are always empirical, whereas molecular formulas are usually not. For example, the empirical formula of benzene, C6H6, is CH, since there is a 1 to 1 ratio of C to H. Note that several molecules can have the same empirical formula. For example acetylene, with molecular formula C2H2, also has the same empirical formula as benzene, even though the two molecules are very different! Water, H2O, is an example of a molecular formula that is also empirical.A formula unit is the symbolic representation of an ionic compound or network solid, and a molecular formula is the symbolic representation of a molecular compound.See the Web Links and Related Questions links for more information.

### What is emperical formula?

It is the simplest formula of a chemical compound which represents the element present of the compound and also represent the simplest ratio between the elements of the compound.ExamplesThe empirical formula of benzene is "CH". It indicates that the benzene molecule is composed of two elements carbon and hydrogen and the ratio between these two elements is 1:1.The empirical formula of glucose is "CH2O". This formula represents that glucose molecule is composed of three elements carbon, hydrogen and oxygen. The ratio between carbon and oxygen is equal but hydrogen is double.The lowest whole number ratio of atoms in a compound.

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