노말농도(n, normality): 당량수(eq)/부피(l) = …contents.kocw.or.kr/document/5_8.pdf ·...
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![Page 1: 노말농도(N, normality): 당량수(eq)/부피(L) = …contents.kocw.or.kr/document/5_8.pdf · 2012-12-24 · 노말농도(N, normality): 당량수(eq)/부피(L) = (무게(g)/당량무게(g/eq))/L](https://reader034.vdocuments.net/reader034/viewer/2022043003/5f81f821baae117e450d6a4f/html5/thumbnails/1.jpg)
노말농도 (N, normality) : 당량수(eq)/부피(L)
= (무게(g)/당량무게(g/eq))/L
당량무게 = g/eq
황산(H2SO4)은 2개의 반응 단위의 양성자
à 1몰마다 2 당량의 양성자
à 당량무게 = (98.08g/mol)/(2eq/mol)
= 49.04 g/eq
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5.6 노말농도 - 부피법 계산을 하는 다른 방법.
- 용액 1L당 물질의 당량(equivalent)이다.
(eq/L)
당량(eq) = 몰 x 분자당 반응 단위의 수
(예) HCl à 반응단위 H+ 1몰 à 1 당량
H SO à 반응단위 H+ 2몰 à 2 당량H2SO4 à 반응단위 H+ 2몰 à 2 당량
당량무게(equivalent weight)
:반응단위 1몰을 내놓는 물질의 무게(그램)
(예)
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노말농도 계산에서의 반응단위 – 양성자와 전자
1. 산-염기 반응
2. 산화-환원 반응
![Page 4: 노말농도(N, normality): 당량수(eq)/부피(L) = …contents.kocw.or.kr/document/5_8.pdf · 2012-12-24 · 노말농도(N, normality): 당량수(eq)/부피(L) = (무게(g)/당량무게(g/eq))/L](https://reader034.vdocuments.net/reader034/viewer/2022043003/5f81f821baae117e450d6a4f/html5/thumbnails/4.jpg)
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![Page 6: 노말농도(N, normality): 당량수(eq)/부피(L) = …contents.kocw.or.kr/document/5_8.pdf · 2012-12-24 · 노말농도(N, normality): 당량수(eq)/부피(L) = (무게(g)/당량무게(g/eq))/L](https://reader034.vdocuments.net/reader034/viewer/2022043003/5f81f821baae117e450d6a4f/html5/thumbnails/6.jpg)
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N(eq/L) = M(mol/L) x n(eq/mol)
= g/L x mol/화학식량g x n(eq/mol)
![Page 8: 노말농도(N, normality): 당량수(eq)/부피(L) = …contents.kocw.or.kr/document/5_8.pdf · 2012-12-24 · 노말농도(N, normality): 당량수(eq)/부피(L) = (무게(g)/당량무게(g/eq))/L](https://reader034.vdocuments.net/reader034/viewer/2022043003/5f81f821baae117e450d6a4f/html5/thumbnails/8.jpg)
N = 5.300g/L x 1mol/105.99gNa2CO3 x 2eq/mol
Na2CO3
N = 5.267g/L x 1mol/294.19gK2Cr2O7 x 6eq/mol
![Page 9: 노말농도(N, normality): 당량수(eq)/부피(L) = …contents.kocw.or.kr/document/5_8.pdf · 2012-12-24 · 노말농도(N, normality): 당량수(eq)/부피(L) = (무게(g)/당량무게(g/eq))/L](https://reader034.vdocuments.net/reader034/viewer/2022043003/5f81f821baae117e450d6a4f/html5/thumbnails/9.jpg)
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N = 212mg/100mL x 1mmol/106.0mgNa2CO3 x 1meq/mmolN = 212mg/100mL x 1mmol/106.0mgNa2CO3 x 2meq/mmol
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0.100N = ?mg/100mL x 1mmol/254mgI2 x 2meq/mmol
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