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Concept explainers
a)
Interpretation:
The half-life of the reaction has to be calculated.
Concept Introduction:
Radiocarbon dating: The dynamic equilibrium exists in all living organism by exhaling or inhaling, maintain the same ratio of
Half-life period: The time required to reduce to half of its initial value.
Formula used to calculate half-life:
b)
Interpretation:
The molarity of the reaction after
Concept Introduction:
Radiocarbon dating: The dynamic equilibrium exists in all living organism by exhaling or inhaling, maintain the same ratio of
Half-life period: The time required to reduce to half of its initial value.
Formula used to calculate half-life:
c)
Interpretation:
The possible reaction mechanism with a unimolecular rate-determining step has to be devised.
Concept Introduction:
Molecularity: Depending on how many molecules come together to react, a reaction can be said as unimolecular, bimolecular or trimolecular. The kinetic order of any elementary reaction is equal to its molecularity.
Rate determining step: The overall
d)
Interpretation:
The reaction product is either chiral or achiral has to be explained.
Concept Introduction:
Achiral: A molecule is achiral if it is superimposable on its mirror image. Most achiral molecules do have a plane of symmetry or a center of symmetry.
Chiral: A molecule is chiral if it is not superimposable on its mirror image. Most chiral molecules can be identified by their lack of a plane of symmetry.
e)
Interpretation:
The crystal field energy level diagrams for
Concept Introduction:
Coordination compounds: The compounds having coordination covalent bonds which form when metal ions react with polar molecules or anions.
Ligands: The ions or molecules that forms coordination covalent bond with metal ions in a coordination compound. Ligands should have minimum one lone pair of electron, where it donates two electrons to the metal. Metal atom accepts the electron pair from a ligand forming a coordination bond.
The strong-field ligands results in pairing of electrons present in the complex and leads to diamagnetic species , while the low-field ligand do not have tendency to pair up the electrons therefore forms paramagnetic species.
Ligand field theory: It is used to explain the bonding between metal and ligand in a coordination complex. Ligand field theory is explained in terms of electrostatic interaction of between metal ion and ligands.
The five d orbitals get divided into two sets that are
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Chapter 20 Solutions
General Chemistry: Atoms First
- Give the number of unpaired electrons in octahedral complexes with strong-field ligands for (a) Rh3+ (b) Mn3+ (c) Ag+ (d) Pt4+ (e) Au3+arrow_forwardAn aqueous solution of [Rh(C2O4)3]3− is yellow. Predict the approximate wavelength and predominant color of light absorbed by the complex.arrow_forwardPlatinum(II) forms many complexes, among them those with the following ligands. Give the formula and charge of each complex. (a) two ammonia molecules and one oxalate ion (C2O42-) (b) two ammonia molecules, one thiocyanate ion (SCN-), and one bromide ion (c) one ethylenediamine molecule and two nitrite ionsarrow_forward
- What types of isomers are possible for the following compounds or complex ions? (a) K[Co(NH3)2Cl4] (b) Pt(en)Cl2 (square-planar) (c) [Co(NH3)5Cl]2+ (d) [Ru(phen)3]Cl3 (e) Na2[MnCl4] (tetrahedral) (f) [Co(NH3)5NO2)2+arrow_forwardGive the electron distribution in low-spin and/or high-spin complexes of (a) Ru4+ (b) Pt2+arrow_forwardSpecify whether the following complexes have isomers.. (a) tetrahedral [Ni(CO)2(Cl)2]. (b) trigonal bipyramidal [Mn(CO)4NO]. (c) [Pt(en)2Cl2]Cl2arrow_forward
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- Chemistry: Principles and PracticeChemistryISBN:9780534420123Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward MercerPublisher:Cengage LearningChemistryChemistryISBN:9781305957404Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCostePublisher:Cengage LearningChemistry: An Atoms First ApproachChemistryISBN:9781305079243Author:Steven S. Zumdahl, Susan A. ZumdahlPublisher:Cengage Learning
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