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26 October, 19:57

How many grams of chlorine must be added to a balloon containing 8.00 grams of helium to double its volume?

A. 4 grams

B. 79 grams

C. 8 grams

D. 16 grams

E. 2 grams

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Answers (1)
  1. 26 October, 22:11
    0
    Under same condition, the volume of gas is related to the mole number. The mole number of He is 8/4=2 mol. So the chlorine also has 2 mol which is 2*35.5*2=142 g.
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