Find the mass of 3.65 x 10^-2 mol K2SO4

3. how much energy in joules is required to evaporate .0005 kg of liquid ammonia to vapor at the same temperature? 4. how much energy ( in megajoules ) is given up by .75 kg of water at 0c when it freezes to form ice at 0c? 5. explain how heat works between and at critical temperatures?

How many moles are in 43.9 l of oxygen

How do i turn 2 s into one in the products