Respuesta :

49% explanation: Ca= 51% F=48 total equals to 49%

The percentage of fluorine in the given compound is 49%.

The given compound;

CaF₂

The molecular mass of the given compound is calculated as follows;

CaF₂ = (40) + (19 x 2)

        =   40  +  38  

        =  78 g/mol

The mass of fluorine in the given compound = 38 g/mol

The percentage of fluorine in the given compound is calculated as follows;

[tex]= \frac{38}{78} \times 100\%\\\\= 48.7 \%\\\\\approx 49\%[/tex]

Thus, the percentage of fluorine in the given compound is 49%.

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