Question

H Eto OEt H$_3$O$^+$, ? K L NaOEt, EtOH H Eto CH$_3$ H$_3$O$^+$, ? M N NaOEt, EtOH 

          H
Eto
OEt
H$_3$O$^+$, ?
K
L
NaOEt, EtOH
H
Eto
CH$_3$
H$_3$O$^+$, ?
M
N
NaOEt, EtOH
H Eto OEt H3O^+, ? K L NaOEt, EtOH H Eto CH3 H3O^+, ? M N NaOEt, EtOH

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Chemistry: Structure and Properties
Chemistry: Structure and Properties
Nivaldo Tro 2nd Edition
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please show mechanisms! 0 0 EtO OEt H3O*, K L NaOEt, EtOH 0 0 EtO CH 3 M NaOEt, EtOH H3O*, N
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Transcript

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00:01 Dear students, question is we are given around 6 equations and we have to find out which equation corresponds to pca value of hc2 over minus.
00:11 We know pca means negative logarithm of ka, where ka is equal to acidity constant.
00:25 That means if we take here, for example we have ascetic acid, we have acidic acid, we have acetic acetic acid ionizes to give cs3 coo minus here let us put take water.
00:45 So in aqua solution it ionizes to give cs3 coo minus plus s3o plus then its pca will be, kaa will be cs3 molar concentration of cs3 co minus molar concentration of s3o plus divided by molar concentration of cs3 coh.
01:13 Water is in excess.
01:15 Therefore, ka value is like this and therefore from this ka value we find out pka.
01:23 Therefore, this pka value of this acid corresponds to this equation...
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