Constants | Periodic Table Part A A sample of O2 (g) is collected over water at

Question

Constants | Periodic Table Part A A sample of O2 (g) is collected over water at 24 °C The volume of gas is 1.14 L. In a subsequent experiment, it is determined that the mass of O2 present is 1.47 g What must have been the barometric pressure at the time the gas was collected? (Vapor pressure of water at 24 °C is 22.4 torr.) Express your answer to three significant figures with the appropriate units. You may want to reference (Page) Section 6.1 while completing this problem. p 53.2 torr Submit Previous Answers Reguest Answer incorrect; One attempt remaining: Try Again MasteringChemistry: Ch. 6-Gases-Google Chrome Next Secure |https://session.masteringchemistry.com/myct/itemView?mode-myAnswers&assignmentProblemID-103...a; Submitted Answers ANSWER 1: Deduction:-3% p- 52.84 torr ANSWER 2: Deduction:-3% p- 75.6 torr ANSWER 3: Deduction:-3% p- 53.2 torr

Explanation / Answer

Formula: PV= nRT where each variable has its general meaning

P = nRT/V = ((1.47/32)*0.082*297)/1.14 =0.98atm

In torr, 0.98*760= 746 torr

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