Answer
Please see the work below.
Work Step by Step
We can find the molar mass of$SiCl_4$as
$5.00K g SiCl_4\times \frac{1mol\space SiCl_4}{169.89 SiCl_4}\times \frac{1 mol Si}{1 mol\space SiCl_4}\times \frac{28.09g \space Si}{1 mol \space Si}\rightarrow 0.8267 Kg\space Si$