How to Calculate Ionization Energy for Hydrogen Molecules in KJ/mol

AI Thread Summary
To calculate the ionization energy of hydrogen in KJ/mol, the energy of the electron in its ground state can be determined using the formula E = -2.178E-18(z²/n²), where z is the atomic number and n is the principal quantum number. For hydrogen, with z=1 and n=1, the energy value can be calculated in Joules. To convert this energy to KJ/mol, one must consider the number of atoms in a mole and the conversion from Joules to kilojoules. The correct approach involves dividing the negative energy value by Avogadro's number and converting to KJ, ensuring accurate results.
antiflag403
Messages
45
Reaction score
0
PLEASE HELP! Ionization Energy Question

Hello everyone,
I am having some trouble with this question. If one of you could point me in the right direction i would be really grateful.

1. Since the ionization process takes an electron from its ground state to the zero level of the energy scale, the ground state engery calculated for the electron of the hyrdrogen atom can be compared to the negative of its ionization engery. Use the equation E=-2.178E-18(z squared/n squared), for the energy of a valence level n to build an equation that can be used to calculate ionization energy of hydrogen in KJ/mol.

I would assume that the ionization energy per mole would just be equal to the negative value of the first energy level divided by the number of moles but this is wrong.
Any help would be GREATLY appreciated. Thanks
 
Physics news on Phys.org
Plugging in z=1, n=1, you can find the IE of a single H-atom in Joules. How many H-atoms in a mole ? How many joules in a kilojoule ?
 
OK. that makes some sense Gokul. Thanks a lot for the help!
 

Thread 'Prove that evolution is constant (Provide at least two arguments to support your position)'

I don't get how to argue it. i can prove: evolution is the ability to adapt, whether it's progression or regression from some point of view, so if evolution is not constant then animal generations couldn`t stay alive for a big amount of time because when climate is changing this generations die. but they dont. so evolution is constant. but its not an argument, right? how to fing arguments when i only prove it.. analytically, i guess it called that (this is indirectly related to biology, im...
View full post »

Similar threads

Chemistry Creating KF Molecule from Neutral Atoms: A Process of Ionization and Binding
Replies
2
Views
3K
Determining ionization energy of Lithium.
Replies
8
Views
10K
A Yes, there is a typo. The correct electronic configuration for Yb+ is 4f146s.
Replies
1
Views
3K
Calculate the Second Ionization Energy of Lithium
Replies
2
Views
61K
Calculating second ionization energy of He
Replies
3
Views
67K
Chemistry, Finding Ionization Energies
Replies
1
Views
3K
B Ionization energy and energy levels
Replies
11
Views
2K
How Is the Enthalpy of Formation for Lithium Fluoride Calculated?
Replies
6
Views
4K
An experiment for the determination of hydrogen ionization energy
Replies
1
Views
1K
Do you graph the energy levels of a ##1s^1## atom the same as a ##1s^2## atom?
Replies
12
Views
878

Hot Threads

Recent Insights

Back
Top