garlic C6H10OS2 5.00 mg

garlic C6H10OS2 5.00 mg

 

 

The molecular formula of allicin, the compound responsible for

the characteristic smell of garlic, is C6H10OS2.

a) What is the molar mass of allicin?

b) How many moles of allicin are present in 5.00 mg of this substance?

c) How many molecules of allicin are in 5.00 mg of this substance?

d) How many S atoms are present in 5.00 mg of allicin?

 

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a) What is the molar mass of allicin?

C6H10OS2의 몰질량 = 162.27 g/mol

 

 

 

b) How many moles of allicin are present in 5.00 mg of this substance?

(5.00/1000 g) / (162.27 g/mol) = 3.08×10^(-5) mol

( 참고 https://ywpop.tistory.com/7738 )

 

 

 

c) How many molecules of allicin are in 5.00 mg of this substance?

1 mol = 6.022×10^23 개 이므로,

( 참고 https://ywpop.tistory.com/6475 )

 

(3.08×10^(-5) mol) (6.022×10^23 개 / 1 mol) = 1.85×10^19 개

 

 

 

d) How many S atoms are present in 5.00 mg of allicin?

1개 C6H10OS2 분자에 2개 S 원자가 들어있으므로,

2 × (1.85×10^19 개) = 3.70×10^19 개

 

 

 

 

[키워드] 마늘 냄새의 주성분인 알리신의 분자식은 C6H10OS2