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

Pyridine c5h5n is a weak base pkb 874 with an unpleasant

Pyridine (C5H5N) is a weak base (pkb = 8.74) with an unpleasant, sweet fishy odour. In a titration, 175.0mL of pyridine solution required 13.6 mL of 0.3250M HCl to reach the equivalence point. a) Calculate the pH of the ...

You are tasked to determine the amount of blue dye in a

You are tasked to determine the amount of blue dye in a sample of purple energy drinka a) How would you be able to see only the blue dye to determine concentration when the drink itself is purple? b) Describe the procedu ...

Why is the freezing point of water set at 32ordmf why does

Why is the freezing point of water set at 32ºF? Why does the Fahrenheit scale start at 0º?

You are provided with 200ml of 05moll-1 hydrochloric acid

You are provided with 200ml of 0.5molL-1 hydrochloric acid in which has been dissolved in a small quantity of anhydrous sodium carbonate. When titrated, 25ml of this solution requires 20.5ml of 0.5molL-1 sodium hydroxide ...

1 the general public often expects solutions to our

1. The general public often expects solutions to our environmental issues that have zero risk. Explain in less than 200 words whether this is possible, supporting your answer with a thoughtful discussion of what risk is ...

Calculate the magnitude of the diffusion-controlled rate

Calculate the magnitude of the diffusion-controlled rate constant at 298 K for a species in (i) water, (ii) pentane. The viscosities are 1.00 × 10-3 kg m-1 s-1, and 2.2 ×10-4 kg m-1 s-1, respectively.

Assuming that air is 210 percent oxygen by volume what

Assuming that air is 21.0 percent oxygen by volume, what volume of air in liters at 45.0 °C and 793 mmHg would be required to burn 185 g of ethanol (C 2 H 5 OH)?

A ground state h-atom absorbs a photon of wavelength 9491

A ground state H-atom absorbs a photon of wavelength 94.91 nm, and its electron attains a higher energylevel. The atom then emits two photons: one of wavelength 1281 nm to reach an intermediate level, and a second to ret ...

Using the following data calculate the pressure of 100mol

Using the following data, calculate the pressure of 1.00mol of Ar(g) in a 40.0L container at 25 degrees Celcius using both the ideal gas equation and the real gas equation. Why are these two values so different? (aAr=136 ...

  • 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