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the accepted density of helium at stp is 0.18 g/L. during an expirement, 0.10g of helium with a volume of 0.54L at stp was collected. what is the percent error in this expirement?

(accepted-expiremental)/accepted X 100

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Please explain because I don't understand. You have the data and the formula. What's left? Plug and chug.

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