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At a certain temperature, the equilibrium mixture of the reaction PCl5 (g) ? PCl3 + Cl2 (g) has PCl5 = 1.50 atm. PCl3 = 0.10 atm and PCl2 = 7.50 atm Calculate the value of Kp at this temperature a. 0.50 b. 0.77 c. 2.0 d. 1.0 e. 1.3
CH4 + 2 O2-> CO2 + 2 H2O How many grams of CO2 are formed from the combustion of 9.00 moles of methane, CH4, in oxygen?
What is the freezing point of water under a pressure of MPa? Assume that the density of ice is 0.915 g.cm^-3 and that of liquid water
When a 6.00-g sample of RbBr is dissolved in water in a calorimeter that has a total heat capacity of 1.806 kJ·K-1, the temperature decreases by 0.440 K. Calculate the molar heat of solution of RbBr.
You need to produce a buffer solution that has a pH of 5.38. You already have a solution that contains 10. mmol (millimoles) of acetic acid.
Complete the chemical equation that show the release of hydroxide ions as each of the following bases dissolves in water:
what are the allowed value for quantum numbers l,m, and s. Explain how this fits with the Mendeleev arrangement of the periodic table.
Show the cycle on a T-s diagram with respect to saturation lines, and determine (a) the thermal efficiency of the cycle and (b) the mass flow rate of the steam.
Magnesium is used in lightweight alloys for airplane bodies and other structures. The metal is obtained from seawater in a process that includes precipitation, neutralization, evaporation
What is the percent dissociation of ascorbic acid if the solution has a pH = 5.50 and a pKa = 4.10?
How reliable is the perfect gas law in comparison with the van der Waals equation? Calculate the difference in pressure of 10.00g of CO2 confined to a volume of 100cm3 at 25 degrees Celsius between treating it as a perfect gas and a van der Waals ..
Calculate the ph change when 25 ml of 3.0 M HCl are added to 500 ml of a solution that is 0.10 M CH3COO
Dental X-Rays expose patients ot about 5.0uSv of radiation. Given an RBE of 1 for X-Rays, how many micrograys of radiaion
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