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Mole Concept

7. A balloon ...

Question

7. A balloon is filled with helium gas at STP, the volume of the balloon is 2.24dm3. Find the amount of helium gas in terms of moles

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Solution

Dear student,
we know that at STP 1 mole of gas occupies 22.4 L of volume The volume given is 2.24 dm³ [1dm³=1L]
That means 22.4 L =1 mole
so 2.24 dm³ = $\frac{2.24}{22.4} = 0.1 m o l e$
Regards!

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