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        1. 29ijGɫh(hun)СMͬW(xu)þӋ(j)yÌ(sh)(yn)ҵļķNUҺpH±F(xin)Ոһ(sh)(yn)ش
          ?UҺ
          A
          pH 6.5 11.3 7.0 2.0
          1ȡҺSքe1-2Οoɫ̪ԇҺʹ̪ԇҺ׃tďUҺ

          2(sh)(yn)ώ֪քeδĚҺϡᣮ˷ֹUҺh(hun)ȾС”Һεȫ(yng)˕rҺpH
          =
          7=򡰣򡰣ԓ(yng)ĻW(xu)ʽ飺
          KOH+HNO3=KNO3+H2O
          Сf(yng)Һе|(zh)߀r(nng)LķՈԓό
          (f)Ϸ
          ʡ׷ʡ⛷ʡ(f)Ϸʡ
          ̪ԇҺֻAҺr׃tɫAǡкͺpH(yng)(dng)?sh)?(yng)ﺬ⛺͵ɷNIB(yng)ԪǏ(f)Ϸʣ
          ⣺1ֻЉAҺʹ̪ԇҺ׃tAҺpH7ʴ𰸞飺
          2(dng)Һϡȫ(yng)KNO3ҺpH=7ке⛃ɷNIB(yng)Ԫڏ(f)Ϸʣʴ𰸞飺=KOH+HNO3=KNO3+H2O (f)Ϸ
          c(din)u}֪Rc(din)^C^(qing)ָʾ׃ɫҪW(xu)ʽͻW(xu)ϵ֪RͬW(xu)ҪW(xu)֪Rڕ؞ͨ
          (x)ϵд
          P(gun)(x)}

          ĿлW(xu) Դ

          17ijGɫh(hun)СMͬW(xu)þӋ(j)yÌ(sh)(yn)ҵļķNUҺpH±F(xin)Ոһ(sh)(yn)ش

          1ȡҺSքe12Οoɫ̪ԇҺʹ̪ԇҺ׃tďUҺ

          2(sh)(yn)ώ֪քeδĚҺϡᣮ˷ֹUҺh(hun)ȾС”ҺεУȫ(yng)˕rҺpH
          =
          7=ԓ(yng)ĻW(xu)ʽ飺
          KOH+HNO3TKNO3+H2O
          Сf(yng)Һе|(zh)߀r(nng)LķՈԓό
          (f)Ϸ
          ʡ׷ʡ⛷ʡ(f)Ϸʡ

          鿴𰸺ͽ>>

          ĿлW(xu) Դ

          ijGɫh(hun)СMͬW(xu)þӋ(j)yÌ(sh)(yn)ļҡķNUҺpH±F(xin)ՈһɲشІ}
          UҺA
          pH 4.5 10.3 3.2 7.0
          1ȡҺSքe1-2Οoɫ̪Һʹ̪Һ׃tďUҺ
          
          2
          NaCl
          NaCl
          Һ
          3W(xu)ώ֪քeδĚ^ҺϡֹUҺh(hun)ȾСƌҺεУȫ(yng)˕rҺpH
          =
          =
          7=ԓ(yng)ĻW(xu)ʽ
          BaOH2+H2SO4=BaSO4+2H2O
          BaOH2+H2SO4=BaSO4+2H2O

          鿴𰸺ͽ>>

          ĿлW(xu) Դ2008-2009W(xu)ɽ|ʡHио꼉£лW(xu)ԇ棩 }

          ijGɫh(hun)СMͬW(xu)þӋ(j)yÌ(sh)(yn)ҵļסķNUҺpH±F(xin)Ոһ(sh)(yn)ش
          ?UҺ
          A
          pH6.511.37.02.0
          1ȡҺSքe1-2Οoɫ̪ԇҺʹ̪ԇҺ׃tďUҺ______
          2(sh)(yn)ώ֪քeδĚҺϡᣮ˷ֹUҺh(hun)ȾС”Һεȫ(yng)˕rҺpH______7=򡰣򡰣ԓ(yng)ĻW(xu)ʽ飺______Сf(yng)Һе|(zh)߀r(nng)LķأՈԓό______ʡ׷ʡ⛷ʡ(f)Ϸʡ

          鿴𰸺ͽ>>

          ĿлW(xu) Դ2008Ĵʡ_(d)пW(xu)ԇ棩 }

          2008?_(d)ݣijGɫh(hun)СMͬW(xu)þӋ(j)yÌ(sh)(yn)ҵļķNUҺpH±F(xin)Ոһ(sh)(yn)ش
          ?UҺ
          A
          pH6.511.37.02.0
          1ȡҺSքe1-2Οoɫ̪ԇҺʹ̪ԇҺ׃tďUҺ______
          2(sh)(yn)ώ֪ҡքeδĚҺϡᣮ˷ֹUҺh(hun)ȾС”Һεȫ(yng)˕rҺpH______7=򡰣򡰣ԓ(yng)ĻW(xu)ʽ飺______Сf(yng)Һе|(zh)߀r(nng)LķՈԓό______ʡ׷ʡ⛷ʡ(f)Ϸʡ

          鿴𰸺ͽ>>

          ͬ(x)Դ