Question

The next two problems are due next week, but work on these problems today with your group. 3.(25PTS) At a water treatment facility, an 750.0L tank containing Ch() has a pressure of 62.0 atm and a temperature of 303 K. (Using ideal gas equation, determine the moles of Cl(8) present. (1) What pressure would be expected if this same amount of gas occupied the same volume at the same temperature, but the Cl obeyed the Van der Waals equation of state? a-6.49 atm L/mol, and b=0.0562 L/mol Data: Atomic mass C - 35.45 4.(25PTS) Explosives are effective if they produce a large number of gaseous molecules as products. Nitroglycerin, for example, detonates as follows: 2c HANOI) -> 6 CO2 + 3 N®) + 5 HMO) % OR) Ir 1.90 g of nitroglycerin explodes, calculate the volume (in liters) that the product gases would occupy if their total pressure is 160 atm at 4.95 x10''c. Data: Atomic masses H-1.008, N-14.01, 0-16.00, C-12.01 Hints: Compute the total number of moles of gases then use the ideal gas equation 01 Optional Bonus Problem (44pts) No partial credit. Suppose you are given exactly 1 Liter of a 2.75 x 10M solution of toluene C.H.CH, dissolved in benzene C.H. Exactly 1 milliliter of this solution is taken and diluted to exactly 1 liter with benzene. Call the resulting solution #2. Next take exactly 1 ml of solution #2 and dilute it to exactly 1 liter with benzene. Call the resulting solution #3. Continue in this manner until you get to solution #8. What is the concentration of solution #8? Calculate the number of molecules of toluene in 1 liter of solution #8. Interpret your result.

Answer 1

P = 62.0 atm V = 750L T: 303 (i) Py=nRT 621hX OL enx 0.0221 L-amml melk X 38k - n 62mm x 10L - 0.0821 L-am mal-k X 303 2 46510 L-am - 24.87 Lammer = 1869.2+ moll P-? m=1869.24 m? V 750L T-303k a> 6. 49 ahme2/mot b=0.05624 mot gas equation Real TP + an ² of V-nb] = nRT P nRT - an? v-nb vz s 1869.24 melt -0821 L-am Imol-X 303k .- 150L - 1869.24 mel . 062 L/mol) 6.49 ahm 2²/mo12 X 1869. 24m of so the = 31.78 am