A thermometer is not present in the space (or volume) in which the CO_2(g) is collected in this experiment. a. How then is the temperature of the CO_2(g) determined in this experiment?
b. The mass of a gas is elusive. How is the mass of the CO_2 (g) collected over water determined in this experiment?

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.

the answer is option a.