Folgende Warnungen sind aufgetreten:
Warning [2] Constant THIS_SCRIPT already defined - Line: 13 - File: inc/plugins/threads_posted_in.php PHP 8.1.33 (Linux)
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Warning [2] Undefined array key "forumlink" - Line: 6 - File: inc/plugins/sidebox.php(691) : eval()'d code PHP 8.1.33 (Linux)
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Warning [2] Undefined array key "forumname" - Line: 6 - File: inc/plugins/sidebox.php(691) : eval()'d code PHP 8.1.33 (Linux)
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Warning [2] Undefined array key "lastpostlink" - Line: 7 - File: inc/plugins/sidebox.php(691) : eval()'d code PHP 8.1.33 (Linux)
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Warning [2] Undefined array key "fullsubject" - Line: 4 - File: inc/plugins/sidebox.php(691) : eval()'d code PHP 8.1.33 (Linux)
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Warning [2] Undefined array key "forumname" - Line: 6 - File: inc/plugins/sidebox.php(691) : eval()'d code PHP 8.1.33 (Linux)
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Fklmh e.V.   ›   FKLMH-Fachbereiche   ›   Reinigung/Desinfektion   ›   Bestimmung der Konzentration von Reinigungsmitteln?

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Bestimmung der Konzentration von Reinigungsmitteln?
AdministratorFeinschmecker
studiosi
****
Registriert seit: Sep 2000
Beiträge: 92

Bewertung: 0
#28
09.02.2006, 09:33
Kyylshrunk schrieb:@Michaela, wenn es sich um ein alkalisches

oder saures Zeuch handelt, kannst du dann nicht einfach ein pH-Meter einsetzen? Bei einer

Titration gegen Phenophtalein machst Du ja nichts anderes (allerdings weiß ich momentan

nicht aus dem Kopf, bei welchem pH Phenolphatlein umschlägt)
Meinst Du

eine Titration mit pH-Meter oder die Bestimmung des pH-Werts der Reinigungslösung? Der

pH-Wert sagt nichts über die Konzentration aus. Beim Titrieren kann man natürlich ein

pH-Meter anstatt des Indikators benutzen.


@Druidelix, Sumpfhuhn007:
Bei

Wikipedia ist das Prinzip der

Säure-Base-Titration ganz

gut erklärt. Hier noch die Erklärung, was der

Äquivalenzpunkt ist.
  Zitieren


Nachrichten in diesem Thema
[Kein Betreff] - von Feinschmecker - 06.02.2006, 13:50
[Kein Betreff] - von Saftschubse - 06.02.2006, 14:09
[Kein Betreff] - von Michaela - 06.02.2006, 15:28
[Kein Betreff] - von Michaela - 06.02.2006, 15:29
[Kein Betreff] - von Saftschubse - 06.02.2006, 16:36
[Kein Betreff] - von Anton - 06.02.2006, 17:02
[Kein Betreff] - von Druidelix - 06.02.2006, 17:38
[Kein Betreff] - von Michael Bäuml - 06.02.2006, 18:10
[Kein Betreff] - von Sumpfhuhn007 - 06.02.2006, 19:18
[Kein Betreff] - von Druidelix - 06.02.2006, 20:39
[Kein Betreff] - von Anton - 07.02.2006, 11:33
[Kein Betreff] - von Druidelix - 07.02.2006, 13:30
[Kein Betreff] - von Feinschmecker - 07.02.2006, 17:10
[Kein Betreff] - von Saftschubse - 07.02.2006, 17:33
[Kein Betreff] - von Feinschmecker - 08.02.2006, 08:49
[Kein Betreff] - von Saftschubse - 08.02.2006, 09:17
[Kein Betreff] - von Michaela - 08.02.2006, 11:25
[Kein Betreff] - von Saftschubse - 08.02.2006, 11:49
[Kein Betreff] - von Michaela - 08.02.2006, 11:54
[Kein Betreff] - von Feinschmecker - 08.02.2006, 12:04
[Kein Betreff] - von Michaela - 08.02.2006, 12:09
[Kein Betreff] - von Kyylshrunk - 08.02.2006, 17:09
[Kein Betreff] - von Druidelix - 08.02.2006, 18:11
[Kein Betreff] - von Sumpfhuhn007 - 08.02.2006, 21:29
[Kein Betreff] - von Kyylshrunk - 09.02.2006, 08:56
[Kein Betreff] - von Sumpfhuhn007 - 09.02.2006, 08:57
[Kein Betreff] - von Feinschmecker - 09.02.2006, 09:33
[Kein Betreff] - von Kyylshrunk - 09.02.2006, 09:41
[Kein Betreff] - von Saftschubse - 09.02.2006, 10:07
[Kein Betreff] - von Michaela - 09.02.2006, 10:21
[Kein Betreff] - von Saftschubse - 09.02.2006, 10:31
[Kein Betreff] - von cnn - 13.02.2006, 10:30
[Kein Betreff] - von Saftschubse - 13.02.2006, 11:35
[Kein Betreff] - von Michaela - 13.04.2006, 09:15
[Kein Betreff] - von Michaela - 20.04.2006, 09:06
[Kein Betreff] - von Saftschubse - 20.04.2006, 09:34
[Kein Betreff] - von Sumpfhuhn007 - 20.04.2006, 19:16

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