please show me how to get the correct answers in preperation for my upcoming exam 8.)...
please show me how to get the correct answers in preperation for my upcoming exam 5.) C 6.) B 7.) D B. I.S4 5. Calculate the mass in grams of 2.74 L of co gas measured at 33°C and 945 mm Hq. A. 0.263 g E. 206 g c. 3.80 g D. 35.2 g B. 2.46 g 6. Calculate the density of Ar (g) at -11°C and 675 mm Hg. E. 1250 g/L A. 1.52 g/L D. 39.9 g/L c....
please show me how to get the correct answers in preperation for my upcoming exam 6.) E 10.) B 12.) C 6) The density of nitric oxide (NO) gas at0.970 atm and 34.9 °C is A) 0.0384 B) 10.2 C) 0.869 8/L. D) 0.339 E) 1.15 10) A pressure vessel contains CO2 (PCO2 = 3.78 atm) and O2 (P02 -6 atm) gases at a total pressure of 9.78 atm. What is the mole-fraction of CO2 and O2 gases, respectively? A)...
please show me how to get the correct answer in preperation for my upcoming exam 12.) C 12) In the presence of excess oxygen, methane gas burns in a constant-pressure system to yield carbon dioxide and water: CH4 (8) +202 (8) -- CO2 (g) + 2H20 (1) AH =-890.0 kJ Calculate the value of q (kl) in this exothermic reaction when 1.80 g of methane is combusted at constant pressure. A) 0.0324 kJ B) -1.00 x 105 kJ C) -100.1...
please show me how to get the correct answer in preperation for my upcoming exam 1.) B 3.) D 4.) C Chemistry 1171 Practice Exam 3 (Chapter 5 & 6) 1. If 30.0 L of oxygen are cooled at constant pressure from 200°C to 1°C, what is the new volume of oxygen? A. 0.150 L B . 17.4 L c . 23.0L D. 51.8 L E. 6.00 x 10 L 3. At what temperature will a fixed amount of gas...
please show me how to get the correct answers in preperation for my upcoming exam 27.) C 28.) B 29.) B 27) The value of AHº for the reaction below is +128.1 kJ: CH3OH (1) CO (g) + 2H2 (g) How much heat is consumed when 87.1 g of hydrogen gas is formed? A) -2.76x103 kJ B) -128.1 kJ C) 2.76 x103 kJ D) -5.52 x103 kJ E) 5.52 x103 kJ 28) How many joules of heat are absorbed when...
please show me how to get the correct answers in preperation for my upcoming exam 11.) D 12.) C 11. If 325 g of water at 4.20°C absorbs 12.28 kJ of heat, what is the final temperature of the water? A. 4.21°C B. 4.80°C c. 9.00°C D . 13.2°CE . 2938°C 12. Naphthalene combustion can be used to calibrate the heat capacity of a bomb calorimeter. The heat of combustion of naphthalene is -40.1 kJ/g. When 0.8210 ao naphthalene was...
please show me how to get the correct answers in preperation for my upcoming exam 16.) 868 18.) 33.9kj 19.) 179 P L ULUCUL COM PICCICUCI Sument Uldisweise uuesti 1) When 0.800 grams of NaOH is dissolved in 100.0 grams of water, the temperature of the Solution increases from 25.00 °C to 27.06 °C. The amount of heat absorbed by the water is_ J. (The specific heat of water is 4.18 J/g-°C.) 18) The AHvap of water is 40.7 kJ...
please show me how to get the correct answers in preperation for my upcoming exam 13.) E 14. A 15.) B 13) A balloon originally had a volume of 4.39 L at 44°C and a pressure of 729 torr. The balloon must be cooled to _°C to reduce its volume to 3.99 L (at constant pressure). A) -288 B) 288 C) 546 D) 0.00 E) 15.1 12) A sample of He gas (2.35 mol) occupies 57.9 L at 300.0 K...
please show me how to get the correct answers in preperation for my upcoming exam 20.) A 21.) A 20) The value of AH° for the reaction below is -1107 k]: 2Ba (s) +O2 (g)2BaO (s) How many kJ of heat are released when 5.75 g of Ba (s) reacts completely with oxygen to form BaO (s)? A) 23.2 kJ D) 96.3 kJ C) 26.3 kJ E) 46.4 kJ B) 193 kJ 21) The value of AH° for the following...
pleasee show me how to get the correct answers in preperation for my upcoming exam 2.) D 3.) B 4.) D 2) A 5.00-g sample of copper metal at 25.0°C is heated by the addition of 133 J of energy. The final temperature of the copper is °C. The specific heat capacity of copper is 0.38 J/g-K. A) 45.0 B) 25.0 C) 70.0 D) 95.0 E) 35.1 250 3) The value of AE for a system that performs 151 kJ...