Question

convert 5.0 mol Si to grams

Answer 1

Answer:

140g/mol

Explanations:

The mass of silicon is expressed according to the formula:

$Mass\text{ of Silicon}=moles\times molar\text{ mass}$

Given the following parameters

• Moles of silicon = 5.0moles

,

• Molar mass of silicon = 28g/mol

Substitute the given parameters into the formula

$\begin{gathered} Mass\text{ of silicon}=5.0moles\times\frac{28g}{mol} \\ Mass\text{ of silicon}=140g\text{/}mol \end{gathered}$

Hence the mass of silicon is 140g/mol