Inorganic Chemistry Answers

What is eigen wave functions and its conditions and also value

Interpret the following equations in words.

A. CoCl2(S) + 2 HF(g) = CoF2(S) + 2 HCl(g)

B. Pb(NO3)2(aq) + 2 KI(aq) = Pbl2(S) + 2 KNO3(aq)

1. Express the oxidation and reduction half reactions of the following.

(MnO₄^-+) to MnO₂(s)

Kindly show how to determine the average oxidation state of C in the following:

1. CH₄
2. CH₂O
3. CO
4. CH₃CHOHCOOH

Explain the steps for solving the following:

Why total dissolved Fe concentration=2.75M?

If groundwater at pH 7.5 is in equilibrium with P_C02 = 10^-1•5 atm and with siderite (FeC0₃(s)).

What is the PH of a buffer solution containing 0.2moldm^-3 ethanoic acid and 0.5moldm^-3 sodium ethanoate?Ka=1.75×10^-5 moldm^-3

An aqueous solution of ethanoic acid has a concentration of 10^-2 moldm^-3. The dissociation constant of the acid is 1.7×10^-5 moldm^-3, calculate the following

1)PH of the acid

2) Concentration of H+

3) concentration of OH-

4)Degree of dissociation of the acid

Using the appropriate gas laws, calculate the quantities denoted by the blanks below.

Conditions before Conditions after

n₁, mol V₁, L P₁, atm T₁, K n₂, mol V₂, L P₂, atm T₂, K

1.25 13.2 1.27 298 1.25 (a)____ 0.987 298

1.25 13.2 1.27 298 1.25 (b)____ 1.27 407

1.25 13.2 1.27 298 4.00 (c)____ 1.27 298

1.25 13.2 1.27 298 1.36 (d)____ 1.27 372

1.25 13.2 1.27 298 1.25 30.5 (e)____ 298

A typical 11B – 1H bond has a stretching frequency of 2400 cm-1. Based on your understanding of isotopic effects on vibrational frequencies, and their connection to bond strength, rank the B – H bonds from weakest to strongest. Consider the most common isotopes of the B – H bonds highlighted below. 

Make sure to explain your ranking.

 10B – 1H,  10B – 2H,  11B – 1H,  11B – H 

The made up element Imaginarium (Im) has an atomic number of 119. Im has been imagined to exist in 

three isotopic forms shown in the table below. 

Im isotope Isotopic mass (kg)

291Im  4.871 X 10-25 

302Im  5.055 X 10-25 

319Im  5.340 X 10-25 

Rank the Im isotopes from least to most stable and explain your reasoning