3. What is AS for preparing a mixture containing 10g of He at 120°C and 1.5...
At STP, what is the volume of a mixture of gases containing 1.0 mol Ar, 1.5 mol He, and 2.5 mol Kr?
Calculate ΔS for the mixing of 20.0 g of He at 120°C and 1.50 bar with 10.0 g of O2 at 120°C and 1.50 bar. Find dS for this process in J/K
A gas mixture containing 50 g of Helium (He), 120 g of Argon (Ar), and 0.1 g Carbon monoxide (CO), has a total pressure of 2560 mbar. (M Ar = 39.95 g/mol, M He = 4 g/mol, M CO = 28 g/mol) The gas mixture is used to reduce hematite (Fe2O3, M = 159.6 g/mol) to iron. State which of the gas constituents is expected to react with hematite, derive a chemical equation for this reaction, and determine the mol fraction of gas mixture required for...
A tank initially contains 120 L of pure water. A salt mixture containing a concentration of 1.5 g/L enters the tank at a rate of 2 L/min, and the well-stirred mixture leaves the tank at the same rate. Find an expression for the amount of salt in the tank at any time t. Also, find the limiting amount of salt in the tank as t +0. (10 points)
Q)a)An aqueous solution containing 10g of optically pure fructose was diluted to 500mL with water and placed in a polarimeter tube 20 cm long.The measured rotation was -5.20 degrees.Calculate the specific rotation of fructose. b)If this solution were mixed with 500 mL of a solution containing 5 g of racemic fructose,what would be the specific rotation of the resulting fructose mixture?What would be its optical purity?
5 kg of water at 2 ° C, 2 kg of ice at 0 ° C and 5.5 kg of water vapor at 120 ° C and 1.5 bar are mixed in a fixed-volume container. What is the final temperature of the mixture? How much water vapor condenses? Suppose that the volume of the container is constant with a value equal to the initial volume of the water vapor and that the container is insulated. Suppose it is a discontinuous...
What is the mole fraction of He in a mixture of He, Ar and Ne. The partial pressures are He = 200.torr, Ar = 375 torr and Ne = 265 torr ? .238 .407 .154 238 How manty g of HCl are needed to make 250. mL of .110 M HCl ? 1.00 g 100. g 2.00 g .500 g Determine the limiting reagent in the following reaction if 4.35 g of TiO2 , 5.67 g of C and 5.96...
11. A gaseous mixture containing 1.5 mol Ar and 3.5 mol CO, has a total pressure of 7.0 atm. What is the partial pressure of CO,? A) 1.8 atm B) 2.1 atm C) 3.5 atm D) 4.9 atm E) 2.4 atm
A gaseous mixture containing 1.5 mol Ar and 3.5 mol CO, has a total pressure of 7.4 atm. What is the partial pressure of CO2? (use 2 sig figs, no need to type down the units)
A mixture containing 0.767 mol He(g), 0.331 mol Ne(g), and 0.113 mol Ar(g) is confined in a 10.00-L vessel at 25 ∘C. 1.Calculate the partial pressure of He in the mixture. 2.Calculate the partial pressure of Ne in the mixture. 3.Calculate the partial pressure of Ar in the mixture. 4.Calculate the total pressure of the mixture. *all answers should be in ATM