What is the weight of 5.5 mole of silicon?

The molar mass of silicon is approximately 28.09 grams per mole. To find the weight of 5.5 moles of silicon, you can multiply the number of moles by the molar mass: (5.5 , \text{moles} \times 28.09 , \text{g/mol} \approx 154.49 , \text{grams}). Therefore, the weight of 5.5 moles of silicon is approximately 154.49 grams.