Explanation Explaination: Combined gas law is nothing but combination of three gas laws for studying the effect of variables on the third variable at constant number of moles of gas P 1 V 1 T 1 = P 2 V 2 T 2 Here P 1 is initial pressure, V1 is initial volume, T1 is initial temperature, P 2 is final pressure, V2 is final volume, and T2 is final temperature, Given: After converting temperature in kelvin and pressure in atm: (a)T 1 =298 K T 2 =325 K P 1 =1.12atm P 2 =? V 1 =6. 50 L V 2 = 1.850L (b)T 1 =298 K T 2 =285 K P 1 =1.120 atm P 2 =? V 1 = 6.50 L V 2 = 2.25 L (c) T 1 =298 K T 2 =320 K P 1 =1.12 atm P 2 =? V 1 = 6.50 L V 2 = 12.8 L Formula used: Using combine gas law, P 1 V 1 T 1 = P 2 V 2 T 2 P 2 = P 1 1 × V 1 V 2 × T 2 T 1 Calculation: (a) We must change the temperature in to kelvin T 1 =25 o C+273=298 K T 2 =325 K We change the initial pressure of mm Hg to atm by equality and coversion factors 1 atm=760 mm Hg The conversion factor is given below 1 a t m 760 m m H g o r 760 m m H g 1 a t m P 1 =848 m m H g × 1 a t m 760 m m H g =1.12atm T 1 =298 K T 2 =325 K P 1 =1.12atm P 2 =? V 1 =6. 50L V 2 = 1.850L Using combine gas law, we can solve for P 2 P 1 V 1 T 1 = P 2 V 2 T 2 P 2 = P 1 1 × V 1 V 2 × T 2 T 1 Substitute the values into the gas law to solve P 2 = 1.12 a t m 1 × 6.50 L 1.850 L × 325 K 298 K =4

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Chapter 8.5, Problem 8.33QAP

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To determine: Final pressure of gas in atm.

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Chapter 8 Solutions

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Ch. 8.2 - Prob. 8.11QAP Ch. 8.2 - A balloon is filled with helium gas. When each of...Ch. 8.2 - Prob. 8.13QAP Ch. 8.2 - Prob. 8.14QAP Ch. 8.2 - A 10.0-L balloon contains helium gas at a pressure...Ch. 8.2 - Prob. 8.16QAP Ch. 8.2 - A sample of nitrogen N2 has a volume of 50.0 L at...Ch. 8.2 - A sample of methane CH4 has a volume of 25 mL at a...Ch. 8.2 - Prob. 8.19QAP Ch. 8.2 - Prob. 8.20QAP Ch. 8.2 - Prob. 8.21QAP Ch. 8.2 - Prob. 8.22QAP Ch. 8.3 - Select the diagram that shows the final volume of...Ch. 8.3 - Indicate whether the final volume of gas in each...Ch. 8.3 - A sample of neon initially has a volume of 2.50 L...Ch. 8.3 - Prob. 8.26QAP Ch. 8.3 - A balloon contains 2500 ml- of helium gas at 75C ....Ch. 8.3 - Prob. 8.28QAP Ch. 8.4 - Prob. 8.29QAP Ch. 8.4 - Prob. 8.30QAP Ch. 8.4 - Calculate the final temperature, in degrees...Ch. 8.4 - Calculate the final temperature, in degrees...Ch. 8.5 - Prob. 8.33QAP Ch. 8.5 - A sample of argon gas has a volume of 735 mL at a...Ch. 8.5 - A 124-mL bubble of hot gas initially at 212 °C and...Ch. 8.5 - A scuba diver 60 ft below the ocean surface...Ch. 8.6 - What happens to the volume of a bicycle tire or a...Ch. 8.6 - Prob. 8.38QAP Ch. 8.6 - Prob. 8.39QAP Ch. 8.6 - Prob. 8.40QAP Ch. 8.6 - Prob. 8.41QAP Ch. 8.6 - Prob. 8.42QAP Ch. 8.6 - Prob. 8.43QAP Ch. 8.6 - Prob. 8.44QAP Ch. 8.7 - A typical air sample in the lungs contains oxygen...Ch. 8.7 - Prob. 8.46QAP Ch. 8.7 - Prob. 8.47QAP Ch. 8.7 - In a gas mixture, the partial pressures are argon...Ch. 8.7 - A gas mixture containing oxygen, nitrogen, and...Ch. 8.7 - A gas mixture containing oxygen, nitrogen, and...Ch. 8.7 - Prob. 8.51QAP Ch. 8.7 - Prob. 8.52QAP Ch. 8 - Two flasks of equal volume and at the same...Ch. 8 - Prob. 8.54UTC Ch. 8 - At 100 °C, which of the following diagrams (1, 2,...Ch. 8 - Indicate which diagram (1, 2, or 3) represents the...Ch. 8 - A balloon is filled with helium gas with a partial...Ch. 8 - Prob. 8.58UTC Ch. 8 - Prob. 8.59UTC Ch. 8 - Prob. 8.60UTC Ch. 8 - Prob. 8.61AQAP Ch. 8 - Prob. 8.62AQAP Ch. 8 - Prob. 8.63AQAP Ch. 8 - Prob. 8.64AQAP Ch. 8 - A weather balloon has a volume of 750 L when...Ch. 8 - Prob. 8.66AQAP Ch. 8 - A weather balloon is partially filled with Helium...Ch. 8 - Prob. 8.68AQAP Ch. 8 - A gas mixture contains Oxygen and Argon at partial...Ch. 8 - Prob. 8.70AQAP Ch. 8 - Prob. 8.71CQ Ch. 8 - You are doing research on planet X. The...Ch. 8 - Prob. 8.73CQ Ch. 8 - Prob. 8.74CQ Ch. 8 - Prob. 8.75CQ Ch. 8 - Prob. 8.76CQ

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