The longest `lambda` for the Lyman series is….
(Given `R_H=109678 cm^(-1)`):

The shortest lambda for the Lyman series is…. (Given R_H=109678 cm^(-1) ):

Calculate the longest wavelength of the Paschen series spectrum. (Rydberg constant = 1.97 xx 10^7 xx 10^7 m^-1)

Calculate the shortest and longest wavelength of Balmer series. (R = 1.1 xx 10^7 m^-1) . In which region of em spectrum do these two wave lengths lie?

The lambda for H_alpha line of Balmer series is 6500 overset@A . Thus lambda for H_beta line of Balmer series is:

Calculate the molar conductance of MgCl_2 at infinite dilution. Given lambda underset (Mg^++) overset(0) = 106.1 ohm^(-1) cm^2 mol^-1 , lambda underset(Cl) overset(0) = 76.3 ohm^-1 cm^2 mol^(-1) .