Question

when 2 gm of a gaseous substance A is introduced into an initialy evaculated flask at 25•c the pressure is found to be 1 atm 3 gm another gaseous substance B is then added to it at the same temprature and pressure .The final pressure is found to be 1.5 atm . Assuming ideal gas behaviour calculation the ratio of the molecular weight of A and B

Answer 1

here is the correct answer