알리신. 44.4% C, 6.21% H, 39.5% S, 9.86% O mol mass 162

알리신. 44.4% C, 6.21% H, 39.5% S, 9.86% O mol mass 162

 

 

Allicin is the compound responsible for the characteristic smell of garlic.

An analysis of the compound gives the following percent composition by mass:

C 44.4%, H 6.21%, S 39.5%, O 9.86%.

Calculate its empirical formula.

What is its molecular formula given that its molar mass is about 162 g?

 

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▶ 참고: 원소분석 [ https://ywpop.tistory.com/64 ]

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① 각 성분의 몰수 계산

> C의 몰수: 44.4 / 12 = 3.7 mol

> H의 몰수: 6.21 / 1 = 6.21 mol

> S의 몰수: 39.5 / 32 = 1.234 mol

> O의 몰수: 9.86 / 16 = 0.616 mol

 

 

 

② 몰수의 가장 작은 정수비 계산

C : H : S : O = 3.7 : 6.21 : 1.234 : 0.616

= 3.7/0.616 : 6.21/0.616 : 1.234/0.616 : 0.616/0.616

= 6 : 10 : 2 : 1

---> 실험식 = C6 H10 S2 O

---> 실험식량 = 6(12) + 10(1) + 2(32) + (16) = 162

 

 

 

분자량 = 실험식량 이므로,

---> 분자식 = 실험식

 

 

 

답: C6H10S2O

 

 

 

 

[ 참고 https://en.wikipedia.org/wiki/Allicin ] Allicin

 

 

 

[키워드] 알리신 기준문서, 알리신 원소분석 기준문서, allicin dic