140g/mol
The mass of silicon is expressed according to the formula:
[tex]Mass\text{ of Silicon}=moles\times molar\text{ mass}[/tex]Given the following parameters
• Moles of silicon = 5.0moles
,• Molar mass of silicon = 28g/mol
Substitute the given parameters into the formula
[tex]\begin{gathered} Mass\text{ of silicon}=5.0moles\times\frac{28g}{mol} \\ Mass\text{ of silicon}=140g\text{/}mol \end{gathered}[/tex]Hence the mass of silicon is 140g/mol
