EDTA extracts bismuth(III) from the bismuth(III)-thiourea (Bi(tu) 3 +) complex according to the reaction, Bi(tu) ++ H₂Y²- → BiY6 tu+ 2H+ where H₂Y²- represents the deprotonated form of EDTA. The Bi(tu)3 + complex exhibits an absorption maximum at 470 nm, whereas the bismuth (III)-EDTA (BIY) complex exhibits an absorption maximum at 265 nm. Which of the spectrophotometric titration curves ヒヒ Volume of titrant Volume of titrant LL Volume of titrant B D represent the titration of Bi(tu)3 + with EDTA when the Volume of titrant absorbance is measured at 470 nm? A F E D B Which of the spectrophotometric titration curves represent the titration of Bi(tu)3 + with EDTA if the absorbance was instead measured at 265 nm? F A B D E Absorbance E Volume of titrant Volume of titrant F

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C
EDTA extracts bismuth(III) from the bismuth(III)-thiourea
(Bi(tu) +) complex according to the reaction,
Bi(tu)3++ H, Y²-
→ BiY¯ + 6 tu + 2H+
2
where H, Y²- represents the deprotonated form of EDTA.
The Bi(tu) + complex exhibits an absorption maximum at
470 nm, whereas the bismuth(III)-EDTA (BiY¯) complex
exhibits an absorption maximum at 265 nm.
Which of the spectrophotometric titration curves
3+
represent the titration of Bi(tu) + with EDTA when the
absorbance is measured at 470 nm?
A
F
B
E
D
Which of the spectrophotometric titration curves
represent the titration of Bi(tu)}{} + with EDTA if the
3+
absorbance was instead measured at 265 nm?
A
B
D
E
F
C
Absorbance
Absorbance
Absorbance
A
Absorbance
Volume of titrant
Volume of titrant
C
D
Volume of titrant
E
Absorbance
Absorbance
Volume of titrant
Volume of titrant
Volume of titrant
F
B
Transcribed Image Text:C EDTA extracts bismuth(III) from the bismuth(III)-thiourea (Bi(tu) +) complex according to the reaction, Bi(tu)3++ H, Y²- → BiY¯ + 6 tu + 2H+ 2 where H, Y²- represents the deprotonated form of EDTA. The Bi(tu) + complex exhibits an absorption maximum at 470 nm, whereas the bismuth(III)-EDTA (BiY¯) complex exhibits an absorption maximum at 265 nm. Which of the spectrophotometric titration curves 3+ represent the titration of Bi(tu) + with EDTA when the absorbance is measured at 470 nm? A F B E D Which of the spectrophotometric titration curves represent the titration of Bi(tu)}{} + with EDTA if the 3+ absorbance was instead measured at 265 nm? A B D E F C Absorbance Absorbance Absorbance A Absorbance Volume of titrant Volume of titrant C D Volume of titrant E Absorbance Absorbance Volume of titrant Volume of titrant Volume of titrant F B
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