Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Chemistry Expert

problem 1:

a) Compute the radius of the second and third orbits in He+ ion. As well compute the energy of the electron in the second and third orbits of He+ ion.

b) Compute the wave number (m-1) and energy (kJ mol)-1 of the light of wavelength 800 nm.

problem 2:

a) prepare down the values of four quantum numbers for 4s and 4p electrons.

b) Compute the de Broglie wavelength related with a body of mass 1.5 kg moving with a velocity of 100 m s-1

problem 3:

a) Arrive at the Lewis structures of ICI+2 and ICI-2 ions. By using VSEPR theory, predict the shapes of such compounds.

b) Compute the bond lengths in bromoethane and bromoethylene by using covalent radii values. For hydrogen, suppose that the covalent radius in 28 pm in such compounds.

problem 4:

a) Describe the structure of BF3 molecule based on hybridization concept. What is its shape?

b) Starting from Lewis structures, find out the hybridization type of the central atoms in IF+4 and ICI4.

problem 5:

a) State the definitions of bonding, antibonding and nonbonding orbital. Draw the molecular orbital obtained by the linear combination of two 1s orbital.

b) By using the molecular orbital theory, describe why the oxygen-to-oxygen bond is stronger in oxygen molecule than in peroxide (O22-) ion.

problem 6:

a) The element X forms a compound, XOCl3, in which X and O form a double bond while the X and Cl form single bonds. Recognize X from the given elements:

i) Al ii) Si iii) P (iv) S.

Give reason for your answer. Predict the shape of the molecule.

b) You are given a gaseous substance. Recommend an experimental method to determine whether it is polar or nonpolar. Describe the steps to be used in this method.

problem 7:

a) The bond length of Hl molecule is 163 pm. Compute its:

i) Moment of inertia and
ii) Rotational constant.

b) What is the essential condition for a molecule to be microwave active? Give three illustrations each for the diatomic molecules.

i) Having microwave activity and
ii) Not having microwave activity.

problem 8:

a) find out the ratio fo the fundamental frequencies of Hl and Dl.

b) Based on Beer-Lambert law, describe the method of finding out the concentration of a given solution of potassium dichromate. You are as well provided with a standard solution of potassium dichromate.

problem 9:

a) The rate constant for the radioactive disintegration of 6027Co is 0.1317 year-1. Compute the mass of 6027Co that will remain after 21.04 years out of 1 gram sample.

b) Describe the principle of finding out the age of organic materials by using radioactive dating method.

Chemistry, Academics

  • Category:- Chemistry
  • Reference No.:- M92539
  • Price:- $70

Priced at Now at $70, Verified Solution

Have any Question? 


Related Questions in Chemistry

An empty 100-ml measuring cylinder weighs 132456 gnbsp when

An empty 100-mL measuring cylinder weighs 132.456 g.  When filled with rice to the 100-mL mark it weighs 220.345 g.  After water has been added to fill the spaces between the grains, the weight is 250.123 g.  What is the ...

The freezing point of a 1 molar nonelectrolyte such as

The freezing point of a 1 molar nonelectrolyte such as ethylene glycol is. What is the freezing point in degrees C of a 1.79 molar potassium chloride solution? Calculate the osmolarity of a solution made from a 1.876 % ( ...

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?

At a particular location in a countercurrent stripper for

At a particular location in a countercurrent stripper for the removal of solute A from a liquid stream, the mole fraction of the transferring species A in the bulk gas phase is 0.01, and the mole fraction of solute A in ...

When 0430 mole of titanium is combusted in a bomb

When .0430 mole of titanium is combusted in a bomb calorimeter, the temperature of the calorimeter increases from 30.00degress Celsius to 91.60 degrees Celsius. In a separate experiment, the heat capacity of the calorime ...

Hello need help with the following chem Hello, need help with the following chem

Hello, need help with the following chem questions.  Aluminum reacts with chlorine gas to form aluminum chloride via the following reaction:  2Al(s)+3Cl2(g)→2AlCl3(s) You are given 24.0 g of aluminum and 29.0 g of chlori ...

A sample has a specific heat of 0155 calgmiddotdegc how

A sample has a specific heat of 0.155 cal/g·°C. How much energy will be required to raise the temperature of the sample from 20.0°C to 35.0°C if the sample has a mass of 8.0 g?

1 show the alcohols you would obtain by reduction of the

1. Show the alcohols you would obtain by reduction of the following carbonyl compounds: (a) CH 3                   (b)          (c)  O      CH 3        |                                                         ||         ...

A sample of o2 was collected over water at 25c and 865 atm

A sample of O2 was collected over water at 25C and .865 atm. If the total sample volume was 2.538 L, how many moles of O2 were collected?

If it is considered that drinking 800 ml of water per day

If it is considered that drinking 800 mL of water per day containing an arsenic concentration equal to the US EPA maximum contaminant level (MCL), delivers the dose to an adult that corresponds to a 1 in 10,000 excess ri ...

  • 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