Question

Complex Reaction Equilibria: EDTA Titrations

1. Adenosine triphosphate (ATP) is a tetradentate ligand. This means that ATP

(A) binds to four metal ions.

(B) binds to metal ions with a charge of 4+.

(C) occupies six coordination positions of the metal ions only.

(D) binds to divalent metal ions.

(E) uses four atoms to bind to the metal ion.

2. Which of the following statements is true about an auxiliary complexing agent?

(A) Increases the conditional formation constant

(B) Forms a complex with the metal ion

(C) Protects some components in the mixture from reacting with EDTA

(D) Forms a complex with the indicator

(E) Displaces the metal ion from the metal-EDTA complex

Stereochemistry

Please assign the relationship to the following pair of molecules, and indicate any meso compound :

enantiomers, diastereomers, constitutional isomer, identical molecules, none of above

CH3 CHO H1-H H | H |—CHO OHC4-CH ++ HỌC H |—H -CH- ++ CH3 CHO 工 CH3 CH3 CH3 Bro CH3

Answer 1

Cho as ett toi oie - ethe - esta - Co toro eHooitet ette Diastereomer b E tets by Constitutional isomers a Identical Diastereomer