A gas occupies a volume of 750 mL at 101.3 kPa. What pressure (in kPa) is needed to decrease the volume to 250mL?

The final pressure of the gas comes out to be 303.9 KPa

Explanation:

Initial volume of gas = V = 750 mL

Initial pressure of gas = P = 101.3 KPa

Final volume of gas = V' = 250 mL

Assuming final pressure of the gas to be P' KPa.

Assuming temperature to be kept constant.

The final pressure can be obtained by following expression shown below

Final pressure of gas = 303.9 KPa

is there multiple choice answers?

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.