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

Question 1di-lithium is composed of two lithium atoms which

Question 1 Di-lithium is composed of two lithium atoms. Which of the following statements regarding di-lithium or lithium is FALSE? They oxidize very slowly in air. They remain in the solid state even after getting fragm ...

When silver tarnishes silver metal reacts with the element

When silver tarnishes, silver metal reacts with the element sulfur to form a gray deposit of Ag2S. If Ag reacts with S to form this compound, identify which element is being oxidized and which is being reduced. Explain h ...

A 400g sample of an ideal gas occupies 124l at 23 degrees

A 4.00g sample of an ideal gas occupies 1.24L at 23 degrees Celcius and 1.12bar. What will be its volume at 14 degrees Celcius and 1.50bar?

If you take a 100 ml portion of a 148 m ammonia solution

If you take a 10.0 mL portion of a 14.8 M ammonia solution and dilute it to a total volume of 0.250 L, what is the concentration of ammonia in the final solution? Provide an answer correct to 2 significant figures. For e ...

Calculate the amount of work done for the conversion of 100

Calculate the amount of work done for the conversion of 1.00 mole of Ni to Ni(CO)4in the reaction below, at 75oC. Assume that the gases are ideal. The value of R is 8.31 J/molK.

Write the balanced equation for the reaction of calcium

Write the balanced equation for the reaction of calcium metal with iron (III) nitrate. The coefficients on calcium metal and iron metal in the balanced equation are: 3 Ca(s) and 2 Fe(s) 2 Ca(s) and 3 Fe(s) 6 Ca(s) and 6 ...

What are the major sources and emissions of air pollution

What are the major sources and emissions of air pollution in your community? What chemicals are they emitting, and how are these chemicals transported through your community (non-point sources, smokestacks, etc.)? Were y ...

1 what is the purpose of making derivatives of unknowns2

1.) What is the purpose of making derivatives of unknowns? 2.) Give three reasons why acetone might interfere with your results. 3.) An unknown sample does not react with 2,4-dinitrophenylhydrazine reagent, but a color c ...

A how many milliliters of a 072nbspmhclnbspsolution do you

A. How many milliliters of a 0.72 MHCl solution do you need to obtain 0.0032 mol of HCl? B. A flask containing 470 mL of 0.50 M  H2SO4 was accidentally knocked to the floor. How many grams of NaHCO3 do you need to put on ...

Explain how bacteria are intimately involved in the

Explain how bacteria are intimately involved in the generation of acidic mine waters

  • 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

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

Describe what you learned about the impact of economic

Describe what you learned about the impact of economic, social, and demographic trends affecting the US labor environmen