1. Which gas is most dense at 1.00 atm and 23·C? CO, (2 points) .N20, or Cla. Show work and explain. 2. Consider the following reaction: (5 points) CaC2(s) + 2 H2O(1) ? Ca(OH)2(s) + C2H2(g) a) How many grams of CaC2 are needed to generate 112 L of C2H2 gas if the pressure of CaHz is 199.6 kPa at 60 c? b) Using the above equation, how many Liter of CzHz gas are produced if 966 mL of water...
Determine the volume of O_2 (at STP) formed when 50.0 g of KClO_3 decomposes according to the following reaction. The molar mass for KClO_3 is 122.55 g/mol. 2 KClO_3 (s) rightarrow 2 KCl(s) + 3 O_2(g) A) 12.3 L B) 9.14 L C) 14.6 L D) 8.22 L E) 13.7 L A gas mixture consists of N_2, O_2, and Ne, where the mole fraction of N_2 is 0.55 and the fraction of Ne is 0.25. If the mixture is at...
(5 points) Rank the following gases from least dense to most dense at 1.00 atm and 298 K: CO, O2, NO, Ch, HF. Explain (H: 1.00 g/mol; C: 12.0 g/mol; O: 16.0 g/mol; N: 14.0 g/mol; Cl: 35.5 g/mol; 9. F: 19.0 g/mol)
15.0 L of an ideal gas at 298 K and 3.13 atm are heated to 400 K with a new pressure of 6.00 atm. What is the new volume?
How well does argon gas al 400 K and 3 atm approximate a perfect gas? Assess the approximation by reporting the difference between the molar volumes as a percentage of the perfect gas molar volume
Which of the following samples will have the greatest average speed at 355 K? Cl2 Ne С2Н4 CH4 All of these samples will have the same average speed at the same temperature. Question 11 What pressure would a gas mixture in a 10.0L tank exert if it were composed of 48.5 g He and 94.6 g CO 2 at 398 K? 7.02 atm 32.6 atm 46.6 atm 39.6 atm 58.7 atm
For the reaction N_2(g) + 3 H_2(g) rightarrow 2 NH_3(g) Delta G degree = -23.6 kJ and Delta S degree = -198.7 J/K at 345 K and 1 atm. This reaction is (reactant, product) favored under standard conditions at 345 K. The standard enthalpy change for the reaction of 2.30 moles of N_2(g) at this temperature would be kJ. For the reaction 2 H_2O_2(l) rightarrow 2 H_2O(l) + O_2(g) Delta G degree = -236.9 kJ and Delta H degree =...
Circle the situation most likely to resemble an ideal gas and indicate why: 1. Ar at 1.5 atm and 400 K OR H2O at 1.5 atm and 400 K 2. Ar at 100 atm and 250 K OR at 200 atm and 250 K 3.Ar at 1.5 atm and 200 K OR Ar at 1.5 atm and 300K.
1.Ideal Gas Law PV = nRT with atm: R = 0.0821 L*atm/(K*mol) If I have 4 moles of a gas at a pressure of 5.6 atm and a volume of 12 liters, what is the temperature? 2. If I contain 3 moles of gas in a container with a volume of 60 liters and at a temperature of 400 K, what is the pressure inside the container? 3. If I have 7.7 moles of gas at a pressure of 0.09...
2. Arrange the three common unit cells in order from least dense to most dense packing. a. simple cubic < body-centered cubic < face-centered cubic b. simple cubic < face-centered cubic < body-centered cubic c. body-centered cubic < face-centered cubic < simple cubic d. body-centered cubic <simple cubic < face-centered cubic e. face-centered cubic < body-centered cubic < simple cubic 3. The normal boiling point of a liquid is a. 373 K. b. the temperature at which a liquid's vapor...