日韩亚洲一区中文字幕,日韩欧美三级中文字幕在线,国产伦精品一区二区三区,免费在线欧美性爱链接

      1. <sub id="o5kww"></sub>
        <legend id="o5kww"></legend>
        <style id="o5kww"><abbr id="o5kww"></abbr></style>

        <strong id="o5kww"><u id="o5kww"></u></strong>
        1. 23ijУW(xu)W(xu)(x)СMͬW(xu)y(c)(bio)(zhn)B(ti)ܶ.O(sh)Ӌ(j)µČ(sh)(yn)E:ٰˆDb䌍(sh)(yn)b:

           

          }Ŀб(𰸺ͽ)

          ijW(xu)W(xu)(x)СMͬW(xu)y(c)(bio)(zhn)B(ti)ܶȣO(sh)Ӌ(j)µČ(sh)(yn)E
          ٰˆDb䌍(sh)(yn)bã
          Ӣҽ̾W(wng)
          ϴԇܣȻָ
          500mLƿbMˮ500mLˮBӟƿ͟IJAƤBͲCҲbMˮgҪšȻÏɊAƤBjAo
          ܷQԇܵ|(zh)14.45gԇKClO3MnO2ĻٷQ|(zh)15.95g
          ݴ_(ki)ɊAџeʹƿ͟ˮһP(gun)]ɊAȻџеˮ
          ޴_(ki)ɊAӟԇܵĻﵽٮa(chn)wˮr(sh)ֹ
          ߷(yng)ꮅb÷sҜ
          {(dio)(ji)ĸ߶ʹƿ͟еˮһȻP(gun)]ɊA
          500mLͲy(c)ßˮwe285.0mLQ(bio)(zhn)rwe279.7mL
          ٷQsԇܵ|(zh)15.55g
          (j)(sh)(yn)شІ(wn)}
          1ڲУbsr(sh)CijһֱҪڟˮУx_(ki)ˮ
           

          2(jin)ıҪʲôҪ{(dio)(ji)ĸ߶ȣʹƿ͟еˮһ
           

          3ژ(bio)(zhn)rܶȞ
           
          MnO2|(zh)?jn)?sh)
           

          鿴𰸺ͽ>>

          ijW(xu)W(xu)(x)СMͬW(xu)y(c)(bio)(zhn)B(ti)ܶȣO(sh)Ӌ(j)µČ(sh)(yn)E
          ٰˆDb䌍(sh)(yn)bã

          ϴԇȻָ
          500mLƿbMˮ500mLˮBӟƿ͟IJAƤBͲCҲbMˮgҪšȻÏɊAƤBjAo
          ܷQԇܵ|(zh)14.45gԇKClO3MnO2ĻٷQ|(zh)15.95g
          ݴ_(ki)ɊAџeʹƿ͟ˮһP(gun)]ɊAȻџеˮ
          ޴_(ki)ɊAӟԇܵĻﵽٮa(chn)wˮr(sh)ֹ
          ߷(yng)ꮅb÷sҜ
          {(dio)(ji)ĸ߶ʹƿ͟еˮһ£ȻP(gun)]ɊA
          500mLͲy(c)ßˮwe285.0mLQ(bio)(zhn)rwe279.7mL
          ٷQsԇܵ|(zh)15.55g
          (j)(sh)(yn)شІ(wn)}
          1ڲbsr(sh)CijһֱҪڟˮx_(ki)ˮ棬______
          2(jin)ıҪʲôҪ{(dio)(ji)ĸ߶ʹƿ͟еˮһ______
          3ژ(bio)(zhn)rܶȞ_(ki)_____MnO2|(zh)?jn)?sh)_(ki)_____

          鿴𰸺ͽ>>

          ijW(xu)W(xu)(x)СMͬW(xu)y(c)(bio)(zhn)B(ti)ܶȣO(sh)Ӌ(j)µČ(sh)(yn)E
          ٰˆDb䌍(sh)(yn)bã

          ϴԇȻָ
          500mLƿbMˮ500mLˮBӟƿ͟IJAƤBͲCҲbMˮgҪšȻÏɊAƤBjAo
          ܷQԇܵ|(zh)14.45gԇKClO3MnO2ĻٷQ|(zh)15.95g
          ݴ_(ki)ɊAџeʹƿ͟ˮһP(gun)]ɊAȻџеˮ
          ޴_(ki)ɊAӟԇܵĻﵽٮa(chn)wˮr(sh)ֹ
          ߷(yng)ꮅb÷sҜ
          {(dio)(ji)ĸ߶ʹƿ͟еˮһȻP(gun)]ɊA
          500mLͲy(c)ßˮwe285.0mLQ(bio)(zhn)rwe279.7mL
          ٷQsԇܵ|(zh)15.55g
          (j)(sh)(yn)شІ(wn)}
          1ڲbsr(sh)CijһֱҪڟˮx_(ki)ˮ______
          2(jin)ıҪԣʲôҪ{(dio)(ji)ĸ߶ʹƿ͟еˮһ______
          3ژ(bio)(zhn)rܶȞ_(ki)_____MnO2|(zh)?jn)?sh)_(ki)_____

          鿴𰸺ͽ>>

          ijW(xu)W(xu)(x)СMͬW(xu)y(c)(bio)(zhn)B(ti)ܶȣO(sh)Ӌ(j)µČ(sh)(yn)E
          ٰˆDb䌍(sh)(yn)bã

          ϴԇȻָ
          500mLƿbMˮ500mLˮBӟƿ͟IJAƤBͲCҲbMˮgҪšݣȻÏɊAƤBjAo
          ܷQԇܵ|(zh)14.45gԇKClO3MnO2ĻٷQ|(zh)15.95g
          ݴ_(ki)ɊAџeʹƿ͟ˮһP(gun)]ɊAȻџеˮ
          ޴_(ki)ɊAӟԇܵĻﵽٮa(chn)wˮr(sh)ֹ
          ߷(yng)ꮅb÷sҜ
          {(dio)(ji)ĸ߶ʹƿ͟еˮһȻP(gun)]ɊA
          500mLͲy(c)ßˮwe285.0mLQ(bio)(zhn)rwe279.7mL
          ٷQsԇܵ|(zh)15.55g
          (j)(sh)(yn)شІ(wn)}
          1ڲbsr(sh)CijһֱҪڟˮx_(ki)ˮ______
          2(jin)ıҪʲôҪ{(dio)(ji)ĸ߶ʹƿ͟еˮһ______
          3ژ(bio)(zhn)rܶȞ_(ki)_____MnO2|(zh)?jn)?sh)_(ki)_____

          鿴𰸺ͽ>>

          W(xu)ώoijW(xu)УоԌW(xu)(x)СMһ(g)΄(w)y(c)(sh)(yn)һƿõNaOHwǷ׃|(zh)ԓСMͬW(xu)M(jn)Œ(sh)(yn)̽
          (wn)}I](mi)׃|(zh)ȫNaOH
          II׃|(zh)
           

          ȫ׃|(zh)ȫNa2CO3
          YϣҺڳµpH£
           }Һ NaCl Na2CO3  BaCl2
          pH 7  7 7
          O(sh)Ӌ(j)M(jn)Ќ(sh)(yn)Ո(qng)cһͬشo(wn)}
          (sh)(yn)E  (sh)(yn)F(xin) (sh)(yn)Y(ji)Փ
          ٷQȡcwƷ10.0g100mlˮҺҺеμȻ^Һ^(gu)ַ(yng)oã a(chn)ɫ f(shu)ùwһ
           
          W(xu)ʽ
          òպȡгַ(yng)όҺһСKpHԇϣc(bio)(zhn)ɫ(du)y(c)pH pH=11 f(shu)ùw߀һ
           
           W(xu)ʽ
          EQcwƷõIJxQ
           
          μ^(gu)BaCl2ҺĿ
           

          (sh)(yn)Y(ji)Փͨ^(gu)(sh)(yn)f(shu)
           

          չԓСMͬW(xu)y(c)ԓNaOHw׃|(zh)̶^m(x)ɫ^(gu)VϴQ|(zh)4.0gtԭƷNaOH|(zh)?jn)?sh)
           
           һλС(sh)
          ˼õĚc׃|(zh)ԭ
           
          ûW(xu)ʽʾ

          鿴𰸺ͽ>>


          ͬ(x)(c)