How many moles of gas would be present in a gas trapped within a 37.0 L vessel at 80.00C at a pressure of 2.50 atm

Can someone me with these questions plz.

Which ocean zone has the most abundant primary producer and why a) the abyssopelagic zone ,du to the absence of light and cold water temperatureb) the bathypelagic zone, due to the absence of light and cold water temperaturec) the mesopelagic zone ,due to uts high light availability and warm water temperature d) the epipelagic zone, due to its high light availability and warm water temperature

Which symbol can be used to indicate the pressure at which a chemical reaction is carried out? 25°c 2 atm pa