                PHÒNG GIÁO DỤC-ĐÀO TẠO ĐÁP ÁN-BIỂU ĐIỂM VÀ HƯỚNG DẪN CHẤM NINH HÒA ĐỀ THI HỌC SINH GIỎI HUYỆN MÔN HÓA HỌC 9 -------------- NĂM HỌC: 2010-2011  Câu I: 5,0 điê ̉ m      ! " #  $%  & '   '&'  (     )   ! " #  $% !( *+ ,  $,  " -.   & '  ' & '  (  '& )   & )/'0  (     1 2  ! " #  $% !( *+ ,  $,  " $3-. $,  " 4  4  -,  4  & '  ' & '  (  2'& 1 2  2 & 1/'0 2 ( 1/'0 2 & ' 1   &'  ( '  !, (45   645-%  6 " 4  7839   &   83   2 &:9  ( 9   &    9 2 ( 9 2  & '   '  9 7 (  839   & '  9 7 839 7  & '  9&9( 83   2 &2'  9 7 83  /9 7 0 2  &2'  ( 83   2 &2'  83 &2'  ( 83 & 9 839( 2;,  < 2 NaHCO x y →≤ = < 2 CONa x y →≥ ( = →<<  x y >?6@A' 2    2 ( #;B  C 2 == x y DEEB@A (   & '' 2 ( CCC 9F @'4G2HCGC/@0 ' 2 & ' 4    2  & '  ( CCC 9F @' 2     GCHCGI/@0( 9F @   2     GC/@0 Câu II: 4,0 điê ̉ m J1  83 2  7 &7 283 &7  (  & &   ( + -. K831   2 ) + -. K&  '4 1   2 &'1   & '  ( L  1  '4 + -. L)83 L  &'4 '& '  & '  ( 1  &'&'  & 1/'0 2 ( 1/'0 2 &2'1 2  &2'  ( /'.  1  &7'  &1 2 &'  0 + -. L&' 2  M  )&' 2 )/ 2 0   &'  ( 83 &7' 2 83/ 2 0 2  &&'  ( 2&:' 2 2/ 2 0   &&7'  ( '  9 7 ' 83 83   2 83 83   2       F 45    '( M   @  G;G7/0 0/ 7 7: 0/7:  7; molngm NaOHNaOH ==→== ( N  , " %   1  /% 0G/@0  G/@0( '  9 7 &'  9 7 & '    /@0/@0( '&'&'   /@0/@0( OB&G7G G7G2/% 0G2/@0 (  Câu III: 4,0 điểm ;O,@/*&0@K   ' 2 &K  F6PQ     2 &K  K 2 &(  @@@  A4?$=R@  GI/0( #;O,@/*&0@K/'0  ' 2 &K/'0  K 2 &'&'  ( *@*@*@    2 &K/'0  K 2 &'( @@@ 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  &/'0   2 &'  (     2    OB 2   / 0 /0  CaCO n mol ay= = = O3645-T6PQ-,BGGG/@0( ^6V(_D#P$A4?6PQ/]0B 7C&:;G@ 1 &77; @ 1 GI7/0);*GI7/0( `PQR1W_' 1 &' 1   & '  (  *  ;nax 02/   ; 0/ 7 C  n ax nax moln H =→=== ( Oa/0/20B)G:  2 ) :C:7 \b\ D$@\83( OG/20*G/70 Oa/0/70B  2  7 ax x ay y = → = DFQ*$@\83 2  7 (  #09A@83 2  7  2 7 7C  / 0 2 Fe O n mol= = ( `45-T6PQ 83 2  7 &'  9 7([ 283  /9 7 0 2 &9  &'  (  2 C  Dc(d@R_83  /9 7 0 2  ) G C  / 0  M= ( Câu V: 3,5 điểm    C: C  / 0 ;  / 0 I / 0 7 7 H NaOH NO n mol n mol n mol= = = = = = ( NS*ef4?!A@R1)83-g>?6*&7&CeG:/0 `fh 1&C'1 2 &2'  ( *** 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Zj(4?$=RWbT1  j1/'0 2  1  &'&'  &1/'0 2 (  '&'&'  (  Ok!A@'G&G/@0    / 0  / 0  HCl V l ml= = = ( Zj(4?$=RlbT1/'0 2 =m(B$Fn$=R 1/'0 2 &2'1 2 &2'  ( C Ok!A@'(oUVG&&CG:/@0   : 7/ 0 7 / 0  HCl V l ml= = = (    . PHÒNG GIÁO DỤC-ĐÀO TẠO ĐÁP ÁN- BIỂU ĐIỂM VÀ HƯỚNG DẪN CHẤM NINH HÒA ĐỀ THI HỌC SINH GIỎI HUYỆN MÔN HÓA HỌC 9 -------------- NĂM HỌC: 2010-2011 