Hi I need to submit these 2 questions in 15 minutes for homework please help ASAP

A beam of UV light with a wavelength = 193 nm hit a metal surface, the kinetic energy of the ejected electron is 5.8e-19 J, determine the binding energy of this metal.

A 1.50 L mixture of helium, neon, and argon has a total pressure of 679 Torr at 293 K. If the partial pressure of helium is 321 Torr and the partial pressure of neon is 108 Torr, what mass of argon is present in the mixture? (1 Torr = 1 mm Hg)