Respuesta :
The molecular formula of rose oxide:
The formula of rose oxide will be [tex]C_{10}H_{18}O[/tex].
What is the molecular formula?
An expression known as the molecular formula describes how many atoms of each element are present in a single compound's molecule. It shows the exact number of atoms in every molecule.
Use the rule of thirteen to obtain the molecular formula for a chemical whose molecular mass is known. Follow these procedures to obtain the molecular formula:
To get the fundamental formula, multiply the molar mass by 13. (sum of the masses of one carbon atom and one hydrogen atom)
Molecular mass/ 13 = n + r/13
where, n = numerator and r = remainder
Base formula is [tex]C_{n}H_{n+r}[/tex]
Calculation:
Remove the mass of the carbon and hydrogen compound that belongs to the same group as the additional atoms if the molecular formula contains atoms in addition to carbon and hydrogen.
Molecular mass /13 = 154/13
= 11 x 13 = 143
Thus, 11 non-H atoms are 11C.
Thus, the formula is [tex]C_{11}H_{11+11} = C_{11}H_{22}[/tex]
If oxygen, is present then the mass is 16 and remove [tex]CH_{4}[/tex].
[tex]C_{11}H_{22} - CH_{4} + O = C_{10}H_{18}O[/tex]
Thus, the formula of the compound will be [tex]C_{10}H_{18}O[/tex]
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