Complexometric Titration: Chapter 4
Explore complexometric titrations, a type of volumetric analysis where a colored complex is used to indicate the endpoint of a titration. Learn how to perform and interpret these titrations with accuracy.
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Quiz17 Questions
Flashcards15 Cards
Study Notes1 Note
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Complexometric Titration: Chapter 4
Quiz • 17 Questions
Complexometric Titration: Chapter 4 - Flashcards
Flashcards • 15 Cards
Study Notes
7 min • Summary
Materials
List of Questions17 questions
- Question 1
- An organic dye containing a chelating group to bond with a metal ion.
- Question 2
- stable
- Question 3
- pH = 7-11 (Blue)
- pH < 7 (Red)
- pH > 11 (Orange)
- Question 4
- True
- False
- Question 5
- Ca²+ and Mg²+
- Question 6
- Because Fe³⁺ and Ce⁴⁺ oxidize EBT.
- Question 7
- Question 8
- Blue to Wine-red
- Violet to Orange-red
- Red to Violet
- Yellow to Violet
- Question 9
- True
- False
- Question 10
- Buffer solution (pH control), Masking agent, or Suitable indicator.
- Question 11
- Zn²⁺, Cu²⁺, Fe²⁺, Cd²⁺, Ni²⁺, Co²⁺, Hg²⁺, Ag⁺.
- Question 12
- Formaldehyde (HCHO) in acidic medium (HAC).
- Question 13
- Back titration.
- Question 14
- more
- Question 15
- Determination of the hardness of water (Temporary and Permanent).
- Question 16
- Question 17
- Sodium nitroprusside or diphenyl carbazone.
List of Flashcards15 flashcards
- Card 1HintChanges color when binding to a metal ion.Memory TipThink 'metal color' for metal-sensitive dyes.
- Card 2HintKF(M-Ind) < KF(M-EDTA)Memory TipIndicator must release metal to EDTA.
- Card 3HintColor change = metal ion interactionMemory TipColor indicates metal's binding status.
- Card 4HintColor change depends on pH.Memory TipEBT: Every buffer tints.
- Card 5HintpH = 10Memory TipMagnesium loves EBT until EDTA arrives.
- Card 6HintSelective for Calcium at high pH.Memory TipMurexide grabs calcium selectively at pH 12.
- Card 7HintCopper indicator for acidic pH.Memory TipPAN: Purple at first, then Copper's red.
- Card 8HintUsed in acidic environmentMemory TipAcid makes Xylenol Orange glow yellow.
- Card 9HintPrevents interference during titration.Memory TipMasking hides unwanted metals.
- Card 10HintRelease masked metal ions.Memory TipDemasking uncovers hidden metals.
- Card 11HintExcess EDTA, then titrate back.Memory TipUse back titration when direct titration is slow.
- Card 12HintForces metal to release from Mg-EDTA.Memory TipDisplacement: Metal swap with magnesium.
- Card 13HintAnalyte releases H+.Memory TipAlkalimetric: Acid release measures metal.
- Card 14HintSilver plus cyanide ppt.Memory TipLiebig: Lumps appear with cyanide.
- Card 15HintAnion + Hg(NO3)2Memory TipMercurimetric finds halides fast.