File:27. Едноставна титрација.ogv

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Original file (Ogg multiplexed audio/video file, Theora/Vorbis, length 1 min 9 s, 1,920 × 1,080 pixels, 4.35 Mbps overall, file size: 35.83 MB)

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Македонски: Во случај кога не располагаме со соодветна апаратура за изведување на титрација, може да се изведе едноставна титрација со употреба на обична епрувета. Во епруветата се ставаат неколку милилитри раствор од HCl и 2-3 капки индикатор фенолфталеин (на почетокот растворот е безбоен). Со капалка се додава раствор од NaOH сè додека растворот не се обои малиново црвено (бојата на фенолфталеин во базни раствори). Равенката на реакцијата е:

HCl(aq) + NaOH(aq) = NaCl(aq) + H2O(l)

Осмислено и изведено од Марина Стојановска, Миха Буклески и Владимир Петрушевски, Институт за хемија, ПМФ, УКИМ, Скопје.
English: When lacking suitable equipment for titration, a simple titration could be performed using a test-tube. Few milliliters of HCl(aq) and 2-3 drops of indicator phenolphthalein are put in the test-tube. This gives colorless solution. Using a dropper some NaOH(aq) is added till the color changes into raspberry red (the color in a basic medium). The reaction equation is:

HCl(aq) + NaOH(aq) = NaCl(aq) + H2O(l)

Planned and performed by Marina Stojanovska, Miha Bukleski and Vladimir Petruševski, Department of Chemistry, FNSM, Ss. Cyril and Methodius University, Skopje, Macedonia.
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Source Own work
Author Карас Студио

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current12:29, 22 February 20201 min 9 s, 1,920 × 1,080 (35.83 MB)Инокентиј (talk | contribs)User created page with UploadWizard

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