ສ.ວ.ສ ສະຫງວນລິຂະສິດ6:G'#5<L pH !8#*<'4:4<&8<'-LE+G-#+8M &7<D &$C+)5@ L<,LN-LE+G-# G()L M<(1@L 8< %=',<F%>F-;+$N<+5+7D<&$:F9'; I7M\"<L pH !8#*<'4:4<&-EL +G-#J'M *<'4:4<& CH3COOH) ;,*<'4:4<& CH3COONa) G4:+MN<P< /M<56C'6< 1<'\"5,\"1A pH J'MF18L@ 28'8<%=',<F%>F4; +M8&*<'4:4<&1>\"+A 4; 6:+:G,,+>M F8+M> 5L<*<'4:4<&,;,F0> I+ <+*'C 48#+>(M 8M #I%*M <'2<16> %:+='\"@ *<'2<16>2B+>F5%> 84 G4: F1(>48N F3+F/<:5L<*<'2<16>2B+F> 5>%84-LE+6J> 'M(:48'%L5# pH *>LF-;+8<%=' G4: ,<F%> 6L5+F1(>48NF3+-EL +6I> +%L5# pH *F>L -;+8<%'= $L?#6<1<'6:G'#I7MF7+; <+-LE+G-# pH !8#*<'4:4<&F1@L8F-+; 8<%'= 7@D ,<F%>J'M $< <+*C'48#*L> F1@8L I%*M <'2<16>2B+F> 5%> 84F7+; 5L<*<'4:4<&-:6C1&;#\"#C F-;+6>,5C \"@F LC<*;#*L>(1@L NaOH G4: HCl 4#C J-6:G'#5L< pH !8#*<'4:4<&,LN-EL + G-#(<1-:4=1<+!8#8<%=' G4: ,<F%*> L>(L@14C#J-F/<:)<M I6L NaOH 4C#J-G45M pH 6#B !+?M *<'2<16\"> 5+-LE+6>F-;+6>P< ME# 6C1M F7@D8# !E5 6>0<M 7@D 1L5#(<1-:4= 1<+!8#,<F%>*>L(L1@ 65L + <+(L1@ HCl 4C#J-G45M pH 7A'D 4C# *<'2<162> +B >F5%> 84 N \"5+$:-EL +6>\"@ ;+ $< <+*C'48#(8+*>L F1@8L I%MF1(>48NF3+F-+; *<'2<16*> <'4:4<&-:61C &;# \"#C F-+; 6>F7D@8#\"F@ L<C F)#= G1+L 5<L $:(@L1 NaOH G4: HCl 4C#J-6:G'#5<L pH !8#*<' 4:4<&+M>,NL-LE+G-#F1@L8(1L@ 8<%='F/<:5<L )<M pH 7DA'4#C *<'4:4<&$:(8M #-EL +6>F-;+6> ,C5 $< <+*C'48#*;# (8+F7+; 5L<6>!8#*<'4:4<&,LN-LE+G-#$?L#F-;+ <+&@+2+; 5L<*<'4:4<&,;,F0>6<1<'\"5,\"A1 pH !8#*<'4:4<&,NLI7FM >' <+-LE+G-# +M<N P< /<M 56'C 6<1<'\"5,\"A1\"L< pH J'M\"@ +; ,; *<'4:4<&-:6C14:75L<#8< %'= 8<F%(= ,; +<(3>8<F%(;'6:G'#5<L +N<M P< /<M 56C'1\"> +A 4; 6:+:F-;+,,; F0> 8:*,= <&F7'.C+**L> <'4:4<&-:6C14:75L<# CH3COOH G4: CH3COONa G4: *<'4:4<&-:61C 4:75<L # NH3 G4: NH4Cl I++<MN 6<1<'\"5,\"A1 pH J5MJ'FM 1@8L (1L@ 8<%'= 7@D ,<F%>4#C J-F4; +8M & G4: I7MF+M+; 5<L *<'4:4<&,;,F0>F-;+*<'4:4<&*-L> : 8,'M5&*<'7D@8>8C#*>LF-;+\"BL8<%=',<F%> +; <+\"5,\"1A -:4=1<+ H3O+ G4: OH- I+ 125
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