two flasks of equal volume are evacuated at the same temperature and pressure, one is filled with gas A and other with gas B. The weight of B gas was found to be 0.8 g, while the weight of A gas was found to be 1.4g. The weight of 1 molecule of B is?
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Answer:
0.2g might be the wait of one molecule
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A mole is equal to the relative molecular mass of a gas. As given, the number of moles of gas X and hydrogen are same in the two flasks.
Therefore no. of moles in 2g of hydrogen gas = 1
No. of moles in 1.01g of hydrogen gas = 1/2
Now the weight of gas X that contains 1/2 moles = 16.2g
Weight of gas X that contains 1mole =
1/2
16.2
= 32g
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