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Review problems - Faculty web pages

Review problems - Faculty web pages

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8.) A 45.0 L container can only withstand a pressure of 11.5 atm. If the container contains 275 gof O 2 gas and 125 g of N 2 gas at a temperature of 250 o C, will the container explode (Hint:remember Dalton’s Law of partial pressures)9.) What is the molar mass of a 12.75 g gas sample that occupies 1.520 L at 57.0 o C and 950torr?10.) How many grams of carbon dioxide would be formed by the reaction of 25.0 L of butane(C 4 H 10 ) at a pressure of 3.65 atm and a temperature of 225 o C?2 C 4 H 10 (g) + 13 O 2 (g) → 8 CO 2 (g) + 10 H 2 O (g)11.) How many liters of water would be formed by the reaction of 65.8 L of oxygen at STP?2 H 2 (g) + O 2 (g) → 2 H 2 O (g)Chapter 11 – Liquids and Solids Calcs1.) Determine the energy change when 68.0 g of carbon tetrachloride (CCl 4 ) is heated from18.0 o C to 43.0 o C. (C = 0.862 J/g o C)2.) A 497 g graphite (C) sample gives off 13.4 KJ of heat as it is cooled. If the initial temperatureof the graphite was 72.5 o C, what is the final temperature? (C = 0.711 J/g o C)3.) A student doing a calorimetric experiment collected the following data:T metal = -80.65 o C m metal = 31.45 g T water = 4.09 o C m water =136.25 gDetermine the specific heat of the metal.4.) Determine the energy change when 145 g of steam at 212.0 o C is cooled to water at 21.0 o C.5.) Determine the energy change when 52.0 g of ice at 0.0 o C is heated to steam at 100.0 o C.6.) Determine the energy change when 52.0 g of ice at –45.0 o C is heated to water at 55.0 o C.

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