When an evacuated glass bulb of 1.00 dm(adsbygoogle = window.adsbygoogle || []).push({}); ^{3}capacity was filled with a sample of krypton at a pressure of 1.00 X 10^{5}Pa and at a temperature of 300K, its mass increased by 3.32 g. Calculate the average Relative Atomic Mass of this sample of krypton.

It's the 'mass increased by 3.32g' part that confuses me. Can anyone tell me how to handle this?

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# Calculate the average Relative Atomic Mass of this sample of krypton

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