Inorganic Chemistry Answers

What is the wavelength (in nm) of a photon if the energy is 7.27 × 10⁻¹⁹ J? (h = 6.626 × 10⁻³⁴ J • s)

For the equilibrium

250-4g)+0g) 250g) K-245 (at 100 K)

The equilibrium concentrations are [SO)-0.204 M.[0.1-0.0264 M and [SO] 0.368 M. Suppose that the concentration of SO, is suddenly halved calculate

Oc and use it to show that the forward reaction takes place to reach a new

equilibrium.

Determine the valence electrons for each of the elements below using their electronic configurations.

Li=​​

Be​​​=

Mg=​​

Cl= 

Br =​​

Kr =

Rb=​​

I =   

What are the valence electrons for the following elements?

A) 1s2 2s2 2p6 3s1                                            C) 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2

B) 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p3                   D)1s2 2s2 2p6 3s2 3p6

Write the electron configurations in noble gas notation for the following elements 

P = ​

​​​Cl =

Ar =​​​​​

Sb =

Write the electron configuration for the following elements. 

K=​​​​​

Co =

Hg = ​​​​    

Se=

Lithium isotope ratios are important to medicine, geology, astrophysics, and nuclear chemistry. Measurements of the 6Li/7Li ratio in a Standard Reference Material are given here. Do the two methods give statistically equivalent results

Write down the full electronic configurations for the ions

(a)Os2+

(b) At–.