1) How many moles of oxygen will occupy a volume of 2.5 L at 1.40 atm and 25°C? 2) What volume will 2.0 moles of nitrogen occupy at 720 mm Hg and 25°C?
3) What pressure will be exerted by 25.0 g of CO2 at a temperature of 30°C and a volume of
500 mL?
4) At what temperature will 5.00 g of chlorine gas exert a pressure of 900 mm Hg at a volume
of 650 mL?

the correct answer is b. a strong acid completely dissociates to its ions when dissolved in water. completely dissociates to and ions. a is incorrect because does not fully ionize to and ions and some remain as the compound . c and d are incorrect because, and do not fall into the category of bronsted lowry acids. a bronsted lowry acid is a proton donor and since both molecules do not have a proton to donate they are not bronsted lowry acids. likewise,   if we use the lewis acid definition, they cannot be acids. a lewis acid is an electron pair acceptor. both and have a complete octet so can not accept any electrons which disqualifies them as acids.

there are two significant figures.