Chemistry
posted by Shadow .
Find the energy( in KJ) of a wave with the wavelength of 507 nm.
First, I turn the 507 nm into meter then divide the speed of light by it which give me the frequency. Then I take the frequency and multiply by the planck. Then I would convert the Joule to KiloJoule. Would this be the correct order of steps to takes?

That looks right to me.
E = hc/wavelength.
E= 6.626E34 x 3E8/507E9 = ?