Several common masking agents used in EDTA titrations are listed paired with a mixture of two metal ions. Classify cach masking agent-metal ion combination by whether the masking agent is capable of masking one of the metal ions and still allowing the other metal ion to react with EDTA or not. Masks one metal ion but not the other Does not mask or masks both metal ions cyanide: Za" and Pa* triethanolamine: A" and P Answer Bank 23-dimercapto-l-propanol: Za* and Ce cyanide: Zn* and Ca* ffuoride: Fe and Zn fluoride: Ar and Fe+

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Several common masking agents used in EDTA titrations are listed paired with a mixture of two metal ions. Classify cach
masking agent-metal ion combination by whether the masking agent is capable of masking one of the metal ions and still
allowing the other metal ion to react with EDTA or not.
Masks one metal ion but not the other
Does not mask or masks both metal ions
cyanide: Zn" and Pa
triethanolamine: Ar and Ph+
Answer Bank
2,3-dimercapto-I-propanol: Zn2+ and Co*
cyanide: Zn+ and Ca+
fluoride: Fe and Zn+
fluoride: A and Fe+
kindly arrange this correctly
Transcribed Image Text:Several common masking agents used in EDTA titrations are listed paired with a mixture of two metal ions. Classify cach masking agent-metal ion combination by whether the masking agent is capable of masking one of the metal ions and still allowing the other metal ion to react with EDTA or not. Masks one metal ion but not the other Does not mask or masks both metal ions cyanide: Zn" and Pa triethanolamine: Ar and Ph+ Answer Bank 2,3-dimercapto-I-propanol: Zn2+ and Co* cyanide: Zn+ and Ca+ fluoride: Fe and Zn+ fluoride: A and Fe+ kindly arrange this correctly
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