The following data were obtained for a complex of nickel at 575 nm in a 1.00 cm cell. Using Microsoft Excel or some other graphi
ng program, construct a calibration plot and accurately calculate the molar absorptivity (ε) for the nickel-complex at 575 nm.
Standard # Nickel Complex Concentration (M) Absorbance
1 0.01 0.058
2 0.02 0.109
3 0.04 0.220
4 0.06 0.328
A. 0.184 M-1cm-1
B. 0.002 M-1cm-1
C. 5.425 M-1cm-1
D. Not Enough Information to Determine
Standard # Nickel Complex Concentration (M) Absorbance
1 0.01 0.058
2 0.02 0.109
3 0.04 0.220
4 0.06 0.328
A. 0.184 M-1cm-1
B. 0.002 M-1cm-1
C. 5.425 M-1cm-1
D. Not Enough Information to Determine
1 answer:
Answer:
Check the explanation
Explanation:
It is basically known that the change in complex compositions of metal play a vital role in the conduction of molecular materials, which display atypical magnetic properties and conducting which also finds applicability in material chemistry, supramolecular and biochemistry, The electrochemical conduct of the nickel Ni(II) complexes was investigated in DMSO by cyclic voltammetry (CV), rotating coulometry and disc electrode (RDE).
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Answer:
a). Coordination no. of = 6
b). Coordination no. of = 6
Explanation:
Coordination number is defined as number of donar atoms bonded to the central atom of the complex ion.
a). Coordination no. of = 6
en or ethylenediamine is a bidentate ligand.
In bidentate ligand, two atoms directly bonded to the central atom.
NH3 is a unidentate ligand.
So, coordination no.= No. of bidentate ligand x 2 + No. of unidentate ligand
=
b). Coordination no. of = 6
Ethylenediamine (en) is a bidentate ligand.
oxalate ion (ox) is also a bidentate ligand.
Cl is a unidentate ligand
So, coordination no.= No. of bidentate ligand x 2 + No. of unidentate ligand
=