Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Chemistry Expert

problem 1: A sample of aqueous 0.1 M cobalt (II) nitrate was prepared.

a) What is the ligand in this system? What is the structure of the complex?
b) What is the hybridization of the cobalt ion?
c) How many bonding molecular orbital are occupied? How many are non-bonding? How many are anti-bonding?

problem 2: In the synthesis of hexaamminenickel(II) chloride, concentrated 15 M aqueous ammonia is added up to an aqueous solution of nickel(II) chloride. The sample is washed with small portions of ether and is stored in a closed vessel.

a) Compare the color of the aqueous solution before and after the addition of the ammonia.
b) Predict the number of unpaired electrons in the product.
c) How many bonding, non-bonding, and anti-bonding molecular orbital are occupied in the product?
d) Why is concentrated ammonia used instead of dilute ammonia? What would occur to a sample of the complex left in an open bottle?

problem 3: Anhydrous solid manganese (III) chloride is extremely dark violet while the solid tetrahydrate, MnCl2•4H2O, is light red.

a) Give a description for the striking changes that take place when the anhydrous salt is hydrated to form the tetrahydrate.
b) What changes will take place when the anhydrous salt is exposed to vapors of ammonia?

problem 4: A recent paper showed that liquid water is a mixture of high density and low density forms.

a) Propose a structural basis for the difference in density observed for the two forms.

b) Propose why the fraction of the low density form reduces as the temperature increases.

c) Oxygen-hydrogen stretching bands in the infrared spectrum at 3120 cm-1 and 3540 cm-1 were assigned to the two forms. Which band belongs to which form?

Chemistry, Academics

  • Category:- Chemistry
  • Reference No.:- M93226

Have any Question? 


Related Questions in Chemistry

Write a reserch paper on gas chromatographythis is a 10

Write a reserch paper on Gas chromatography. This is a 10 pages research paper that should include an introduction on chromatography, principles of separation, type of columns, resolution, detection methods and applicati ...

Ionic compoundswriting assignment ionic compounds in

Ionic Compounds Writing Assignment: Ionic Compounds in Action A national chemistry council has selected you to create marketing materials for its new "Chemistry All Around Us" campaign. Your task is to increase public aw ...

A 120 ml sample of a compound has a density of 144 gml what

A 12.0 mL sample of a compound has a density of 1.44 g/mL. What is the weight of the sample in g?

Aim - to understand the fundamentals of atomic structure

Aim - To understand the fundamentals of atomic structure, chemical bonding, periodic tableandits application in engineering problems - Objective - Observing and explaining the reasons of engineering chemistry related pro ...

Assignmentpart 11the ph scale is generally considered as a

Assignment Part 1 1. The pH scale is generally considered as a scale from 1 to 14. State a value of pH considered to be: a. acidic b. basic c. neutral 2. The acid in our stomach is used to break down food proteins and ki ...

1nbspcalculatenbspthe grams of na2co3nbsprequired to

1. Calculate the grams of Na 2 CO 3   required to prepare 250.0 mL of 0.375 M Na 2 CO 3  solution. 2. The reaction of sodium carbonate with hydrochloric acid produces carbonic acid and sodium chloride. If 25.00 mL of O.0 ...

What is the volume occupied by 291 g of argon gas at a

What is the volume occupied by 29.1 g of argon gas at a pressure of 1.23 atm and a temperature of 399 K?

Question 1this is a tandem ms of a tryptic peptide the mass

Question 1: This is a tandem MS of a tryptic peptide. The mass of the intact peptide is 1569.692 Da. a. There are two immonium ions labelled with their mass-to-charge ratio in the spectrum. Label the signals with their s ...

Question 1in contrast to going without food the human body

Question 1 In contrast to going without food, the human body can survive only about __________ days without water. A. 3 B. 7 C. 11 D. 15 Question 2 Which of the following sources of water is most likely to contain contam ...

The elements of 3d transition series are given assc ti v cr

the elements of 3d transition series are given as:sc, ti, v, cr, Mn, fe, Coanswer the following: (a) write the element which shows max. no. of oxidation states.why? (b)which element has highest M.P (c) which elements is ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

WalMart Identification of theory and critical discussion

Drawing on the prescribed text and/or relevant academic literature, produce a paper which discusses the nature of group

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro