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How many moles did i add to it before giving

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Reference no: EM132732432

Suppose I gave you a balloon that contains 7.2 L of gas. If I tell you that originally, the balloon's volume was 1.4 L and that it contained 2.3 moles of gas, how many moles did I add to it before giving it to you?

Reference no: EM132732432

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