Chemistry, 04.01.2020 07:31 yedida

Aballoon containing helium gas expands from 230 ml to 860 ml as more helium is added. what was the initial quantity of helium present if the expanded balloon contains 3.8 × 10-4 mol, assuming constant temperature and pressure? which of the variables are known?

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Aballoon containing helium gas expands from 230 ml to 860 ml as more helium is added. what was the i...

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