Why is [Fe(OH2)6]3+ prepared in an acidic solution? A. It is a Bronsted acid in aqueous solution B. It is stabilized against reduction in acid C. It is not soluble in water at pH = 7.0 D. All of the choices

Q: 2: Calculate the oxidation number of chromium in Cr,0,².

A: Calculate the oxidation number of chromium in Cr2O72-

Q: place the following metals from most reactive to least reactive: Ag, Zn, Pb, Na, Sn

A:

Q: What is the oxidation state of each element in K, Cr, 0,? Cr What is the oxidation state of each…

A:

Q: 44. (a) An aqueous solution of Mn(NO3)2 is very pale pink, but an aqueous solution of K¼[Mn(CN)6] is…

A:

Q: What is the most likely molecular geometry of the complex [Fe(en)2CI2]* ? O trigonal planar O…

A: The oxidation number of iron in the given complex ion is +3 The central metal ion Fe+3 is surrounded…

Q: What mass of KMNO4 must be dissolved to prepare 1.25 L of 0.110 N KMNO4 solution? ( K =39 , Mn = 55,…

A: KMnO4 is an oxidising agent. When KMnO4 is used in the titration, it does not require any kind of…

Q: Solutions of the iron(lll) – containing ionic compounds Fe2(SO4)3 and FeCl3 are yellowish in colour.…

A:

Q: Give the number of d electrons (n of dn) for the central metal ion in (a) [Cr(H2O)6](ClO3)2; (b)…

A: Electronic configuration is used to describe how the electrons of an atom/ion are distributed in the…

Q: A sample of iron ore weighing 0.6428 g is dissolved in acid The iron is reduced to Fe*? and titrated…

A: Note - The concentration value for K2Cr2O7 is incorrect. It has to be 0.01052 N instead of 0.1052 N…

Q: Describe giving reason which one of the following pairs has the property indicated : (a) Cr2+ or…

A: a) Cr2+ is a better reducing agent. As it attains a d3 configuration on losing an electron while…

Q: 1. A sample of iron ore weighing 0.6428 g is dissolved in acid The iron is reduced to Fe* and…

A: Soln  M_0.6428

Q: Q 3 (b): How does the effective nuclear charge, Zeff, vary from left to right across the first…

A: Here, Zeff denotes the effective nuclear charge of the elements.

Q: 1. Draw the molecular orbital diagram for the following molecules: (a) NH3 (b) CO (c) CN 2. Explain…

A: A molecular orbital diagram, or MO diagram, is a qualitative descriptive tool explaining chemical…

Q: 6. Use the crystal field theory to explain bonding in [Zn(CN)6]4-. You must show the orbital…

A:

Q: What is happening to the iridium in this reaction ? Ir(CO3)2 + Fe → Ir + Fe(CO3)3 A. oxidation B.…

A: Oxidation is loss of electrons. Reduction is gain of electron.

Q: What is the oxidation number on the transition metal in the following compound? Be sure to choose a…

A: The complex given is K[Cr(en)Cl4].

Q: Match the oxidation state of the coordinated metal center which pair is incorrect ? O a. ScCl: +3…

A: We have given the complexes as follow a) [ScCl6]3-   , +3 b) K[Cu(CN)2]   , +1 c) [Cr(C2O4)3]3-   ,…

Q: A solution of [Ni(NH3)6]Cl2 is blue and paramagnetic. (Atomic number of Ni = 28) (a) Write the…

A:

Q: Determine the chemical equation for the reaction between Fe3+ and Cu2+ with NH3.

A: Ammonia is the weak base.  It is used in the aqueous form.  The reaction of ammonia with the given…

Q: (a) Why do transition elements show variable oxidation states? (i) Name the element showing maximum…

A: a) Transition elements show variable oxidation state because their valence electrons in two…

Q: Predict the products of each of the following reactions and then balance the chemical equations.(a)…

A: Since you have posted a question with multiple sub-parts, we will solve first five sub-parts for…

Q: Draw the chemical structure below and explain the oxidation state of metal central and the charge of…

A:

Q: In aqueous solution, Co(H₂O) 6²+ is pink, CoCl4²- is blue, and CI- and H₂O are colorless. The…

A:

Q: In the complex ion [Cr(C204)2(H20)2], the oxidation number of Cr is Select one: O A. -2. O B. -1. O…

A: The given complex is, [Cr(C2O4)2(H2O)2]- To find: The oxidation number of Cr?

Q: Solutions of the iron(lll) – containing ionic compounds Fe2(SO4)3 and FeCl3 are yellowish in colour.…

A: In this question, the reason for deep brown color of Fe(MnO4)3 is to be determined while Fe2(SO4)3…

Q: draw the structure of the possible product forthe following reaction, and how does the oxidation…

A: We have to draw the structure of possible product .and identify how the oxidation state changeg.

Q: Please show how to determine the oxidation number of the transition metals below: a) ) [Fe(NO2 )6]:…

A: The oxidation state of metal ions in the above given complexes are as follows:

Q: Give reasons :(i) Zn is not regarded as a transition element.(ii) Cr2+ is a strong reducing agent.

A: (i) Zn belongs too d block but not considered as transition elements because it contains completely…

Q: Which of the following complexes has the highest magnitude and more positive standard reduction…

A: A question based on coordination complex that is to be accomplished.

Q: Which is the weakest oxidizing agent? Will Pb reduce Fe³* to Fe2*? Will I- reduce Pb2* to Pb?

A: (d) The weakest oxidizing agent is finding. (e) Pb reduces Fe3+ to Fe2+ or not, is determined. (f)…

Q: why is [Fe(SCN)]^2+ red, when Fe^3+ is yellow and SCN^- is clear?

A: When you study colour spectra of Complexes then you came to know about some Rules that govern the…

Q: 23. Table 4 shows various oxidation states and colours of vanadium ions and complexes. * Table 4 Ion…

A: The oxidation state of vanadium is calculated based on the following rules: I) elements are in zero…

Q: What happens if a piece of metallic copper is dipped in a solution containing Cr3 + ions?

A:

Q: 14 > What is the oxidation state of each element in K, Cr, 0,? K Cr What is the oxidation state of…

A: Compound = K2Cr2O7  This is known as potassium dichromate. Electronic configuration of O = 1s22s22p4…

Q: Calculate the pH of a solution that is 0.100 M in Fe(NO3)3.

A: K=[H3O+][Fe(H2O)5OH]2+[Fe(H2O)6]3+

Q: Question 2a and 2b

A: Given complexes:

Q: Write the chemical equation for the disproportionation of Cr(OH)3Cr(OH)3 in basic solution.…

A:

Q: 20. What is the oxidation number of Cr in Cu,CrO,? А. +12 В. +3 С. +4 D. +5 E. +6

A:

Q: In the formation of iron (II) oxide, which species is being reduced? Fe(s) + O2(g) → FeO(s)   a.…

A: The chemical species that gains electrons are called reduced species.

Q: Choose all of the following that would be colorless in an aqueous solution. Zn2+ O sc3+ Cr3+ Fe2+…

A: Only the ions that have electrons in d orbital and in which d-d transition is possible will be…

Q: Identify which geometric isomer of [Pt(NH3)2Cl2] as shown. Draw the other geometric isomer and give…

A:

Q: 4 iron compounds have the following properties A: is hard to be oxidized in normal condition B:…

A: Iron is a chemical element and it is a prt of hemoglobin. It belongs to the first transition series…

Q: Calculate the oxidation number of Cr in K2CrO7

A: The oxidation number of Cr in K2Cr2O7 is to be calculated. The total number of electrons the atom…

Q: What is the most likely missing coefficient in the formation equation between cobalt (III) and…

A: Given :-  Co3+ +____ NH3 <----> product   To be determined:- coefficient of NH3 in above…

Q: 23. Table 4 shows various oxidation states and colours of vanadium ions and complexes. Table 4 lon…

A: Oxidation state of an atom is the charge occupied by the atom after gaining or losing electrons…

Coordination Chemistry

It is a part of chemistry, in which the study of compounds that have central atoms surrounded by molecules or ions, known as ligand, is known as coordination chemistry.