When 2 g of a gas is introduced into an evacuated flask kept at 25∘C – InterviewSolution

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1.	When 2 g of a gas is introduced into an evacuated flask kept at 25∘C, the pressure is found to be 1 atmosphere. If 3 g of another gas B is then added to the same flask, the total pressure becomes 0.5 atmosphere. Assuming ideal gas behaviour, calculate the ratio of molecular mass MA:MB.
Answer» When 2 g of a gas is introduced into an evacuated flask kept at $25^{\circ} C$ , the pressure is found to be 1 atmosphere. If 3 g of another gas B is then added to the same flask, the total pressure becomes 0.5 atmosphere. Assuming ideal gas behaviour, calculate the ratio of molecular mass $M_{A} : M_{B}$ .

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