Axit-Bazo-Muoi tpp4

GIA           Ngày soạn : 10/09/2009 Tuần: 02 Ngày dạy : 16/09/2009 Tiết PP: 04 Bài 2 : AXIT – BAZƠ - MUỐI I. MỤC TIÊU 1. Kiến thức:        !" #$"%&'!()*+,'-./&-0 )12 !3-42" #$3-420 2. Kỹ năng: 5678(9-./ !" #$2: &-%;<=>%)12 !" #$" %&'!()*+0 5/<)$&?%>(2: @A  BA   !" #$"%&'!()*+C D  @-A  0 3. Thái độ:  E%)12;-/F' G2%HC377 !" #$"@-I0 II. PHƯƠNG PHÁP Trực quan – đàm thoại – nêu vâ ́ n đê ̀ 0. III. CHUẨN BỊ Dụng cụI>@"J%* Hoá chất77 "K(  "(" L "M-N+@0 IV. THIẾT KẾ CÁC HOẠT ĐỘNG 1. Ô ̉ n đi ̣ nh lơ ́ p O 2. Kiểm tra ba ̀ i cu ̃ : PQ/R'(R24%>(@ST24%U(./-T2'C+78@'  T  3. Bài mới: HOẠT ĐỘNG CỦA THẦY HOẠT ĐỘNG CỦA TRÒ NỘI DUNG Hoạt động 15R'R UV  !T #$T WX CR'F/Y2%ZG20 Hoạt động 2Q-./&- !2E<[(R24%>( FAT 5/<)$&?%>( 2:  2J2  !  B -  ("  L " L \ ] "   ] 0 Q+242-2:  !"  #$  (R7'' R'  M-./ %UT B^2(S2J2FJ>@ C3 !" #$0   !"   #$  (R  2J2  24 %>(0 B([C/<)$ &?  %>  (  2:  2J2  ! %E0 →&H& 6!_0   W'  2J2  '   `  CR    M-./%U0  I. Axit, bazơ theo thuyết Arêniut : 1. Định nghĩa *AxitaR24F &' )b2<=(& 2 ' ` Ví dụ (→ ` `(   L → ` ` L   * Bazơ  aR  24  F    &'  )b2  <=  (  &  '   0 Ví dụ c→c `  `    de  → ` `  GIA           → Qf<)$&?%>( gC  )b  7h  B  &H  & %U  V  @b  C3  !"  #$0 Hoạt động 3 'BJ<)$&?%> (2: (CR   ] T →c/(-6C3 !@i42 CR !3-420 Thông báo2J2 !<= ((j()1,'f420 gC)b7h    ] → ` ` ]   ]   ˆ ˆ† ‡ ˆˆ  ` ` ]  Lưu ýk2E42Y4 (R%>('R'R0  de  <=(42& '  → #$420 Hoạt động 4 Gv làm thí nghiệm lff77 CR'77 K(   %/  F  F/  : FA!-4>@m 0  F/: (R@<j P\n2'@CRG ! P\nn2'@F3@CR'0 Kết luậnKde  Cf J2 78%)12Cb !"Cf J2 78  %)12  Cb   #$ → %&A!()*+0 BC/<)$&?%> (CR=!_0 a4.@@iBIC+78C3 !3-420 BC/<)$&?<= (f422:    ]  CR  L \ ]  QfFJ>@ !42 CR !3-42&H& FJ >@C3 #$42CR #$ 3-420 5/<)1&?<=( f  42  2:     CR  de  0 BM- BJ>)1CR [+20 Hiện tượng  F/  :  2[   I%3- & 0   WX  CR'  BX  )b  7h 2:  gC  C/ <)$  &? <=  (  2:  Kde   CR (de L  ,'F;- !CR 2. Axit nhiều nấc, bazơ nhiều nấc: a. Axit nhiều nấc J2 !2k<=(& @i ' ` G(R !@i420 5+78(" L " L  J2 !@R@i<=m <=(3-42& ' `  G(R !3-420 Ví dụ L \ ] "   L o J2 !3-42<=( (j()1,'f420 b. Bazơ nhiều nấc J2 #$@R@p<=m 2k<=(@i42& '   G(R #$420 Ví dụ "co J2 #$@R@p<=m <=(3-42& '  '  (R #$3-420 Ví dụ  de  → de ` `   de ` → ` `  II. Hiđrôxit lưỡng tính aR24F &')b2 Cf 2E;<=() ! Cf 2E;<=() #$ Ví dụ Kde   ˆ ˆ† ‡ ˆ ˆ K ` `  Kde   ˆ ˆ† ‡ ˆˆ K   ` ` iBI%&A!()*+ )qr< (de L "Kde  "\de  " &de L "de  o0 GIA             5/  2J2  %&A!  7)b 7S2AY2 ! Kde  →  K  \de  →  \  (de L →(  0   Hoạt động 2 -I(R?TF;@iBI @-I)qr<0  Q/  R'  (R  @-I  !  T @-I  &-  'R  T  2'  C+ 78 PLưu ýiBI@-I%)12 2'(RFA X2/Ch    Cb  @i  ()1  l0 \j &4l%E%>(0  #$0 B2Y-%;&[(q0  Muối trung hoà  &' '  I2  !  FA  2E %&A<=( ` Muối axit&' 'I2 !2s%&A<=( ` 0 B([C/<)$ &?%>(2: 2J2@-I II.MUỐI: 1. Định nghĩa -I(R1<24F  &')b2<=(& 2 ' F@  ('Sd'r2   ] ` e  CR 'I2 !0 Ví dụ d ] e   ] → ] ` ` ]    L → ` ` L   Muối trung hoà   ("    L "d ] e   ] o  Muối axit    L "    \ ] "  ] o 2. Sự điện li của muối trong nước : j-/2J2@-I<=( 'R'R0 c   ] →c ` ` ]    L → ` ` L  gI2 !2s2Y %&'2E + !  L   €  ` ` L  3. Củng cốR6<LtBFt 4. Dặn dò: a D @ D =  <""]"uttBF'   ' D  D R6<&'gc V. 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