Chemistry: Which of these concepts apply to aqueous solutions? check all that apply. arrhenius concept bronsted-lowry concept lewis concept

Which of these concepts apply to aqueous solutions?

c1100321311

21.11.2020

The molecular formula of the compound is $C_9H_{18}$

Explanation:

We are given:

Empirical formula of the compound = CH_2

For determining the molecular formula, we need to determine the valency which is multiplied by each element to get the molecular formula.

The equation used to calculate the valency is :

$n=\frac{\text{Molecular mass}}{\text{Empirical mass}}$

We are given:

Mass of molecular formula = 126 g/mol

Mass of empirical formula = $12+(2\times 1)]=14g/mol$

Putting values in above equation, we get:

$n=\frac{126g/mol}{14g/mol}=9$

Multiplying this valency by the subscript of every element of empirical formula, we get:

$C_{(9\times 1)}H_{(9\times 2)}=C_9H_{18}$

Hence, the molecular formula of the compound is $C_9H_{18}$

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