To get dry ice to the triple point

please help !!

How many moles are contained in 5.6 l of h2 at stp

What is the difference between a substance "getting wet" and "being dissolved" in a liquid at the particulate level?

How many liters of water can be produced from 5.0liters of butane gas at stp, assuming excess oxygen? c4h10(g) + 02(g) → co2 (e) + h2o (g)