conservation of mass.docx - What was the mass of the empty...

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What was the mass of the empty, open Erlenmeyer flask?
What was the mass of the Erlenmeyer flask with the 5% vinegar?
What did you observe when you combined the sodium hydroxide and vinegar?
What was the mass of the vinegar solution added to the Erlenmeyer flask?
What can be said about the mass of the 5% vinegar and 1 M NaOH after they were combined?
What was the mass of the closed Erlenmeyer flask with the water and Alka Seltzer?
What did you observe after adding the Alka Seltzer to the water?
What was the pressure in the Erlenmeyer flask after the addition of the Alka Seltzer to the water? Select the closest answer.
What was the pressure inside the Erlenmeyer flask after you opened it?
What happened to the pressure inside the Erlenmeyer flask, as compared to normal atmospheric pressure, after the addition of Alka Seltzer to the water?
What could account for the change in pressure inside the flask that you observed after the addition of the Alka Seltzer?

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