Hi, I need help with two questions on my chemistry homework that I am struggling with.

#1: A laser emits 1.57 x 10^17 photons of light every second. The light has a wavelength of 332 nm. You shine the light from the laser on a piece of metal with a mass of 32.7 grams and a specific heat capacity of .57J/gK and the energy from the light gets converted to heat, heating the metal. If the initial temperature of the metal is 29.8C, what will the temperature of the metal be after the laser has shined on the metal for three minutes?

#2: The heat released when 25.3 grams of propane (C3H8) combusts is enough to melt the 3.84 kg of ice at 0C, converting it into liquid water at 0C. What is the delta H formation of propane?

Please explain how you got to the answers as I would like to learn how to do the problems.