Homework Help for Chemistry

Consider the π-system formed from a single p-orbital from each atom in X−C−X, where αX=a+1.5β

(i) Determine the π-orbital energies

(ii) Determine all three π-orbital molecular orbitals

Q.4 Write down the secular determinant for a C-O pi-bond where the C and O atoms each contribute 1 electron and α0​=α+2.0β

(i) Determine both π-orbital energies

(ii) Calculate the total π-electronic energy

(iii) Estimate the bonding energy arising from the π-bond.

(iv) Determine the MOs

(v) Calculate the partial charges on both atoms (arising from the π-bond)

A balloon of gas has a pressure of 1.72 atm, temperature of 35 oC and volume of 2.9 L. If the temperature decreases to 18 oC and the pressure increase to 3.51 atm, what is the new volume in L?

How many moles are present in 10g of Na2SO4

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bromoethane react with ch3ch20na

a further 25 ml of the original iron(II)/iron(III) mixture was reduced with zinc and acid and it then required 37.60 ml of the KMnO4 for complete oxidation

Compare the pH of the milk sample and the pH at which casein solid forms

You received an unsolicited proposal from a self-declared inventor who is seeking investors for the development of his latest idea: a device that uses heat extracted from the ground by heat pump to boil water into steam that is used to heat a home and to power a steam engine that drives the heat pump. This procedure is potentially very lucrative because after an initial extraction of energy from the ground no fossil fuels would be required to keep the device running indefinitely. Would you invest in this idea? State your conclusion clearly and present detailed arguments to support it.

Osteomalacia occurs due to the deficiency of 

Write a balanced chemical equation for this reaction.

In the laboratory, a general chemistry student measured the pH of a 0.436 M aqueous solution of nitrous acid to be 1.897 .

Use the information she obtained to determine the Ka for this acid.

Ka(experiment) = 

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