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contestada

1. Find the molecular formula of a compound that has a molar mass of 216.8 g and an empirical formula of PdH 2 .

Respuesta :

Answer: The molecular formula for the given organic compound is [tex]Pd_2H_4[/tex]

Explanation:

The empirical formula for the given compound is [tex]PdH_2[/tex]

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 :

[tex]n=\frac{\text{molecular mass}}{\text{empirical mass}}[/tex]

We are given:

Mass of molecular formula = 216.8 g

Mass of empirical formula = 108.4 g

Putting values in above equation, we get:

[tex]n=\frac{216.8}{108.4}=2[/tex]

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

[tex]PdH_2\times 2)}=Pd_2H_4[/tex]

Thus, the molecular formula for the given organic compound is [tex]Pd_2H_4[/tex]