trilon b eritmasi titri

7.4. tajriba mashg’ulotlari 1 - ish. trilon b eritmasining titrini aniqlash. kerakli asbob – uskuna va reaktivlar: 1) 1,0 litrli o’lchov kolba; 2) 500 yoki 10,00 ml li pipetka; 3) shtativ; 4) 25,00 ml li byuretka ; 5) 3 dona 50 ml li titrlash kolbasi; 6) yuvgich; 7) trilon b; 8) *qora eriohrom t; 9) **ammiakli bufer eritma*. trilon b-oq, suvda yahshi eriydigan kukunsimon modda (na2h14c10o8 n2 2h2o). molekulyar massasi 372,25 g/mol, molyar ekvivalent massasi m/2 = 186,12 g/mol. agar trilon b 120 – 1400s gacha qizdirilsa, uning tarkibidagi suv uchib ketib na2h12c10n2 formulaga mos keluvchi suvsiz tuz qoladi. har ikkala tuz ham trilon b ning eritmasini tayyorlash uchun dastlabki modda sifatida ishlatiladi. 0,1000 n trilon b eritmasidan 1,0 l …

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