Answer:
[tex]\boxed {\boxed {\sf 1.24727159 \ moles \ of \ sulfur }}[/tex]
Explanation:
To convert from grams to moles, we must use the molar mass found on the Periodic Table of Elements.
1. Molar Mass
This is a sample of sulfur, so look for S on the table.
2. Convert from Grams to Moles
Use the molar mass as a ratio.
[tex]\frac { 32.07 \ g \ S}{ 1 \ mol \ S }[/tex]
Multiply by the given number of grams: 40
[tex]40 \ g \ S * \frac { 32.07 \ g \ S}{ 1 \ mol \ S }[/tex]
Flip the fraction so the grams of sulfur will cancel each other out.
[tex]40 \ g \ S * \frac {1 \ mol \ S }{ 32.07 \ g \ S}=40* \frac {1 \ mol \ S }{ 32.07 }[/tex]
[tex]\frac {40 \ mol \ S } { 32.07 } = 1.24727159 \ mol \ S[/tex]
There are 1.24727159 moles of sulfur.
