Respuesta :
To find the empirical formula from a molecular formula, you should divide the Subscripts by the Some integer in order to get the smallest whole number.
Part-A
The empirical formula of [tex]Al_{2}Br_{6}[/tex]is [tex]AlBr_{3}[/tex], we get it by dividing both subscript (i.e. 2&6) by 2.
Part-B
The empirical formula of C8H10 is
Simplest ratio of CH = 8:10 = 4:5
Hence, empirical formula =C4H5
Part-C
The empirical formula of C4H8O2 is C2H4O, we get it by diving all subscripts [tex]\frac{4}{2} : \frac{8}{2} :\frac{2}{2}=2:4:1[/tex] by 2.
Part- D
molecular formula= P4O10
simplest ratio of
[tex]\frac{P}{O}= \frac{2}{5} \\ empirical formula = p_{2}O_{5}[/tex]
Part -E
The empirical formula of C6H9CL2 is C3H2CL,we get it by diving all subscripts[tex]\frac{6}{2}:\frac{4}{2}:\frac{2}{1} =3:2:1[/tex] by 2
Part-F
The empirical formula of B3N3H6is BNH2, we get it by diving all subscripts [tex]\frac{3}{3} :\frac{3}{3} :\frac{6}{3} = 1:2:3[/tex] by 2.
what is molecular formulae?
- A molecular formula is a picture of a molecule that shows the different types of atoms in the molecule using chemical symbols, followed by subscripts to show how many of each type there are in total.
- Molecular formulae are also used as acronyms for such names of compounds (a subscript is only used if more than one atom of a certain kind is present).
- When two or more elements interact chemically, bonds are created, and substances called compounds are created. for example the reactions of sodium and chlorine may produce table salt while the reactions of hydrogen and oxygen can produce water.
- Sometimes, we use an empirical formula to define the atom kinds and simplest whole-number ratio of these compounds' atoms (or ions) to explain their structure.
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