Im sure thats the frequency of a photon with 745000 joules of energy (enough to ionise copper)

not sure its the answer your prof. is looking for

What areas of general chemistry are you familiar with? I need a lot of help answering some questions.

physical chemistry and material chemistry are i know best, some food chemistry and colloid science

Are you familiar with this type of question? :

If you dissolve LiBr in Chloroform and find that the mole fraction of LiBr is .071. What is the boiling point of this solution?

and

If you dissolve of NaF in water and find that the new boiling point of the solution is 103.1OC. What is the mass percent of NaF?

This post was edited by chicano on Jul 1 2015 05:18pm

Energy of a photon is

E= hv

E= energy
h= planck const
v= frequency

You must ionize it + energy of electron

ionization energy is in 745kj/mol
per mol

This is the same as freezing point depression, just using the boiling constant instead of freezing

This post was edited by saber_x3 on Jul 1 2015 05:22pm

It doesn't give me grams, nor moles, nor anything of anything though.

If you dissolve of NaF in water and find that the new boiling point of the solution is 103.1OC. What is the mass percent of NaF?

would this be 3.1 = (2) (m) (.5121)

and if I solve for m I get 3.026752587

This post was edited by chicano on Jul 1 2015 05:30pm

1. solve for moles of solute
2. turn moles of solute to mass
3. find mass percentage , m1 /(m1 +1kg)

Well wouldn't the 3.026752587 i got for m [from 3.1 = (2) (m) (.5121)] be the moles of solute?

yes