Buckminsterfullerene is the famous "buckyball" molecule with the molecular formula C60. It has a cage-like structure that resembles a soccer ball, made of twenty hexagons and twelve pentagons. How many moles of C60 are there in 1.0 kg of Buckminsterfullerene? 0.023 mol 1.4 mol 8.4×1023 mol 4.3x10-20 mol 0.12 mol
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- 50. If the average kinetic energy of the molecules in an ideal gas at a temperature of 300 K is E, the average kinetic energy at a temperature of 600 K is (A) E/√2 (B) E (C) √ZE (D) 2 E (E) 4 EQuestion 1 After some time, you pour 0.2 kg of milk, whose initial temperature was 5°C. What will be the final equilibrium temperatur of this system? Let: 1 kg of coffee, originally at 95°C, is placed into a .3 kg aluminum cup. J = 4186 kg K J 500 kg K J CMilk = 3000 kg K Ccoffee CAL =Remaining Time: 1 hour, 06 minutes, 13 seconds. ¥ Question Completion Status: O 25 m/s O 5 m/s? QUESTION 10 5. What is the average translational kinetic energy of an ideal gas at 868 K? (The value of Boltzmann's constant is 1.38 x 10-23 J/K) O 4.11 x 1019 O 1.23 x 10-17J 10-21 5.99 x 1.80 x 10 20 chckSave and Submit to save and submit. Click SaveAll Answers to save all answers. Save-AIPAnsW
- A gas occupies 4.50 L at 55.0°C. What is the temperature of the gas when its volume expands to 9.00 L (assuming the P is constant)? 110 °C 343 °C 383 °C 27.5°C 55.0°CA gas molecule with a molecular mass of 44u has a speed of 337 m/s. What is the temperature of the gas molecule? O 6.0 x 104 K O2.0 x 104 K O 2.0 x 105 K O 2.0 x 10² K O 6.0 x 10² KGas is confined in a tank at a pressure of 11.0 atm and a temperature of 25.0°C. If two-thirds of the gas is withdrawn and the temperature is raised to 75.0°C, what is the new pressure of the gas remaining in the tank?
- A cubical box with sides of length 0.221 m contains 1.310 moles of neon gas at a temperature of 314 K. What is the average rate (in atoms/s) at which neon atoms collide with one side of the container? The mass of a single neon atom is 3.35x10-26 kg. Number i UnitsAg(s) + Pb 504(s) → Pb(s) + Agt (ac) + say (ac) Datos A H°298: 53, 22 kcal A Gers: 53,41 cal Acp298: -8,7 Cal K(T) = ? In KT = In K298 + + 1 T 55,8 8,7×103³ dł. √248 TF2 TF - 4,4 In T = +28,8-2,81 × 10-4 TA gas with an initial temperature of 940 °C undergoes the process shown in the figure. (Figure 1) Figure p (atm) 3 2 1- 0 0 100 200 2 300 V (cm³) Part A What type of process is this? Isochoric. Isobaric. Isothermic. Submit ✓ Correct Part B What is the final temperature in °C? Express your answer using two significant figures. T= 3400 °C Submit V= Previous Answers Part C ✓ Correct Previous Answers How many moles of gas are there? Express your answer to two significant figures and include the appropriate units. Submit HÅ A 29 10-4 mol Previous Answers Request Answer P Pearson ?
- On a cold day, when the air temperature is 0°C, you empty your lungs and take a deep breath, filling your lungs with 4.2 L of air. If you hold your breath until the temperature of the air in your lungs reaches 37°C, what is the volume of the air in your lungs at that point, assuming the pressure does not change? 5.2 L 4.8 L 4.4 L O 5.0 L O 4.6 L7. The figure shows a 50 kg lead cylindrical piston which floats on 0.68 mol of compressed air at 30°C. How far does the piston move if the temperature is increased to 300°C? 130 cm 250 cm 50 kg 1300 cm 120 cm 30°C 10 cmGas is confined in a tank at a pressure of 12.7 atm and a temperature of 24.0°C. If two-thirds of the gas is withdrawn and the temperature is raised to 67.0°C, what is the pressure of the gas remaining in the tank?