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λ for one line of the hydrogen spectrum is .4118 x 10-4 cm. Use this value in the Rydberg equation to calculate the RH value using n1 = 2, and n2 = 5.

change the line spectrum to meters

you know the equation is Et= Ef-Ei (i think is the equation they want you to use, i don't know what they want),
well then that would be (-Rhc/nf^2)-(-Rhc/ni^2)

Rhc= 2.179 Z 10^-18 J/atom or
1312 kJ/mol

if this isnt the equation you needed sorry

This is a double post.

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