Posted by **Jenny** on Friday, September 7, 2012 at 3:25am.

Can someone help me to check my answer and the way I solve this problem is right or wrong?

Determine the energy required to turn a Na metal atom into a gas phase ion (Na+ (g)).

Ionization energy of Na(g) 499 kJ/mol

Electron affinity of O(g)for2e- 603 kJ/mol

Energy to vaporize Na(s) 109 kJ/mol

O2(g) bond energy 499 kJ/mol

Energy change for the reaction:

2Na(s) + 1/2 O2(g)---> Na2O(s) -416kJ/mol

I think I will use Na(s)-->Na(g) and

Na(g)-->Na+(g)

to solve this problem and this is my answer:

499+(109x2)= 717 kJ/mol

This is my answer.

Please help me out to check my answer and if I did wrong, please help me to show what steps I should do to get the right answer.

Thank you so much.

## Answer this Question

## Related Questions

- Chem 1 - It takes 208.4 kJ of energy to remove 1 mole of electrons from an atom ...
- Gas Laws and Energy - I have another question. I've tried it and i keep getting ...
- Chemistry - What energy in kJ is required to break 4.24 mol of NH3 into atoms? ...
- Chemistry - 1.) The average velocity of Cl(2) molecules is 2.50 x 10^3 m/sec at ...
- solving Equations - Solve x square pluse 5x subtracting by 6 equals zero? X^2 + ...
- Chemistry - What amount of energy is required to completely ionize 21.5 grams of...
- Chemistry - Consider the gas-phase transfer of an electron from a sodium atom to...
- ap chemistry - What amount of energy is required to com- pletely ionize 26.9 ...
- Chemistry (Follow up post - Dr.BOB22) - Ionization is when an electron is ...
- chemistry - can someone explain a diatomic molecule, monatomic gas and what ...

More Related Questions