2.0M.COM 03.0m atoms of Sodium, Na moles Na 20 3X10” atoms of Argon, Ar = grams Ar 21 1.8X10% atoms of Ar gas at STP = L

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2 0m Com 03 0m Atoms Of Sodium Na Moles Na 20 3x10 Atoms Of Argon Ar Grams Ar 21 1 8x10 Atoms Of Ar Gas At Stp L 1 (77.57 KiB) Viewed 10 times

2.0M.COM 03.0m atoms of Sodium, Na moles Na 20 3X10” atoms of Argon, Ar = grams Ar 21 1.8X10% atoms of Ar gas at STP = Lliters Ar at STP 22 How many moles of ammonium carbonate are in a 1929 sample of (NH.).CO, (s)? 23 The mass of 1/3 (one third) moles of tricalcium phosphate, Ca,(PO.), is closest to A 103g B 0.001g C2x 10g D 310g E 450g F 160g G 18x104g H 0.33g I 1.8 x 10“g 24 The molarity of a solution prepared by dissolving 120 grams NaOH in a total volume of 3 liters of aqueous solution is closest to: A1.0M B 2.OM CO.SM D 3.0M E0.33M FROM G 20M H 4.0M 25 You are given two identical balloons - both balloons are at STP. Balloon A contains exactly one mole of Neon, Ne gas: Balloon B contains exactly one mole Radon, Rn gas. Which of the statements below are true? (If there is more than one correct answer, you must circle all the correct answers to receive credit) A The temperature of balloon A is greater than the temperature of balloon B B Balloon B has a greater mass than balloon A The pressure inside Balloon A is greater than in Balloon B I D The temperature of both balloons are the same E If both balloons have a tiny pinhole, the gas in Balloon B will effuse slower than the gas in Balloon A F Both balloons have an approximate volume of 22.4 liters G Only balloon B has an approximate volume of 22.4 liters H Balloon A contains more atoms than balloon B Extra Credit I (5 points) Imagine you are standing on a porch facing the street on the seventh floor of a building - about 80 feet above the ground. There is a long glass straw going from the porch (where you are standing) all the way down into an open bottle of water that is on the ground in front of the building Clearly explain, using scientific terms, whether or not it would be possible to drink water through the glass straw from the open bottle that is sitting on the ground.