Inorganic Chemistry Answers

a) In carbonate ion, all the three CO bonds have identical bond length. Explain.

3. a) Explain the reason for the variation of the first ionization energies of the third period  elements. (4) b) Calculate the lattice energy (in Units kJ mol1 ) for ZnO crystal using Eq. 3.4 based on  electrostatic model and using a Born-Haber cycle. Compare the two answers and comment  on any difference. Useful data: Medelung constant (A) = 1.6411 Born Constant (n) = 8 Internuclear distance (a) = 199 pm Zn(s) + ½ O2(g)  ZnO(s) Hf =  350.5 kJ mol1 Zn(s)  Zn(g) HS = 130.4 kJ mol1 Zn(g)  Zn+ (g) I(Zn) = 906.3 kJ mol1 Zn+ (s)  Zn2+(g) I(Zn+ ) = 1733 kJ mol1 ½ O2(g)  O(g) ½Hd = 248.5 kJ mol1 O(g)  O  (g) EA(O) = 141 kJ mol1 O - (g)  O 2 (g) EA(O ) = 780 kJ mol1

Which has the highest chemical bond energy.
A )ionic bond
B )single bond
C)double bond
D) triple bond

What is ammonium hydroxide? Explain with a suitable equation why the term is misleading and what would be a better term for it.

Hi there

I have an icp-ms result of 5.6 ug/g scandium. I want to back calculate to how much scandium oxide I initially had in ug/g and kg/ton. Thanks in advance.

Calculate the ionization energy of hydrogen atom using Bohr’s theory.

uv-vis absorption spectra are broad band spectra explain

One method for making NaCN is the reaction of 2K4FeCN6 + 7H2SO4 = 12HCN + 2FeSO4 +2KHSO4 +K2SO4. The HCN is distilled into 50% NaOH...after awhile the solution turns dark brown and you can smell ammonia.The reaction is likely 8NaCN +3H2CO3(from water and CO2)=2NH3 + 6NaOCN + Na2CO3 + 2C What can be done to reverse this reaction?Is there any way to get rid of the dark brown color? The Merck Index says water solutions of NaCN rapidly decompose...if that is true then how are any SN2 reactions done with NaCN in water--ethanol solution?The internet has next to nothing on this problem.

Names of following compounds
1) [(H2O)4 .Fe(OH)2.Fe(H2O)4]4+
2)[Cocl(NO2)(en)2]Cl
3)K2[PtCl6]

Explain the type of hybridization in phosphorous pentafluoride