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The equilibrium constant, Kc, for the following reaction is 1.80E-2 at 698 K. 2 HI(g) H2(g) + I2(g) Calculate the equilibrium concentrations of reactant and products when 0.261 moles of HI are introduced into a 1.00 L vessel at 698 K. [HI] = M [H2] = M [I2] = M
While 1.22 g of a white solid, supposed of being pure cocaine, a molecular compound, is dissolved in 15.60 g of C6H6 the freezing point is lowered by 1.32 ¬0C. Compute the molar mass of the solid. Kf value for benzene = 5.12C/m.
Th-232 has a half-life of 1.39 x 10^10 years old. A certain rock has a Pb-208/Th-232 mass ratio of 0.25/1.00. Estimate the age of the rock.
calculate the molarity (M) of the solution when water is added to prepare each of the following: a)25.0 mL of a 18.0 M HCl solution is diuted to 500 mL. b)50.0 mL of a 1.50 M NaCl solution is diluted to 125 mL. c)4.50 mL of a 8.50 M KOH solution i..
A polarization potential arises from a concentration difference between ions in the neighborhood of the electrode and those in the bulk of the electrolyte solution. Calculate the polarization potential in a copper electro-refining cell given the f..
Given the following data table, use the method of initial rates to determinet the rate law for the following reaction: A + B = C + D + E run: ro(M/s): [A]o: [B]o: [C]o: [D]o: [E]o:
What is the heat of vaporization of a if 215mol of the liquid required 2040J of energy to vaporize at its boiling point
The heat of fusion of water is 6.01kj/mol, and the molar heat capacity is 36.6 J/(K*mol) for ice and 75.3 J/(K*mol) for liquid water.
Which element has the most atoms? 10 grams of neon, 16 grams of oxygen, 32 grams of selenium,
Rank the following redox-active coenzymes and prosthetic groups of the electron-transport chain in order in increasing affinity for electrons. Use 1 for the species with the lowest electrn affinity and a 5 for the highest affinity. Explain how you..
Calculate the activities and the activity coefficients for a chloroform-acetone solution in which Xa=0.6. the vapour pressure of pure chloroform at 50c is Pc* = 98.6 kpa and the vapor pressure for chloroform above the solution is Pc=53.3 kpa
Assuming that neither the density of water nor its specific heat capacity change with temperature, calculate the total heat capacity of the calorimeter. (density of water = 1.00 g/ mL , specific heat capacity = 4.18 J g-1 K-1)
When 1.0 g of snack cake is combusted in a constant-pressure bomb calorimeter with a heat capacity (including its water) of 10.0 kJ/°C, the temperature of the calorimeter rises by 2.24°C. How many nutritional calories (Calories) are in one serving..
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