Q. 7.3 - An Introduction to General, Organic, and Biological Chemistry

Question

Allyl sulfide, ${\left(C_3{H}_5\right)}_{2}S$, gives garlic, onions, and leeks their characteristic odor. The characteristic odor of garlic is due to a sulfur-containing compound. 

a. How many moles are in $23.2$g of allyl sulfide? 

b. How many grams are in $0.75$ mole of allyl sulfide? 

Step-by-Step Solution

Answer

a. $0.203$moles are in$23.2$g of allyl sulfide .

b. $85.65$grams are in $0.75$mole of allyl sulfide .

Part (a) Step 1: Given information

We need to find that how many moles are in $23.2$g of allyl sulfide 

Part (a) Step 2: Explanation

Number of moles=gram molecular weight/molar mass 

Therefore here in this case we get ;

 So,  number of moles$\Rightarrow \frac{23.2 \cancel{g}}{114.21\cancel{g}/moles}=0.203$moles

Part (b) Step 1: Given information

We need to find that how many grams are in $0.75$ mole of allyl sulfide  .

Part (b) Step 2: Explanation

To find grams , we will use this formula ,

Number of moles=gram molecular weight/molar mass 

Substituting the values we get ;

$\Rightarrow 0.75\cancel{ moles }\times 114.21\frac{g}{\cancel{moles}}=85.65$g