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Explain a mixture of ideal gases having a total mass of 31.4 g is placed in a 9 L vessel at 324.0 K. If the equilibrium pressure is measured to be 2.4 bar. Compute the average molar mass of the gas mixture
A 0.062 M aqueous sample of species y was analyzed by atomic absorption spectroscopy at 525 nm and in a 1.00-cm cell and yielded a %T value of 70.19 % . Calculate the molar absorptivity of species y.
If the water in your house has 1000.0 mg/L of calcium carbonate dissolved in it, How many grams of sodium oxalate could you mix with 100.0 mL of that water before a precipitate would form.
Use the Beer-Lambert Law to calculate concentration given the following information
sodium borohydride,NaBH4, a substance used in the synthesis of many pharmaceutical agents,can be prepared by reaction of NaH with B2H6 according to the equation 2 NaH + B2H6 = 2 NaBH4.
It takes 49.0 J to raise the temperature of a 9.60 g piece of unknown metal from 13.0 degrees celsius to 24.5 degrees celsius. what is the specific heat for the metal?
Determine the lowest frequency of light (in Hz) required to remove an electron from a sample of Ti metal, if the binding energy of titanium
The maximum value of n in [Cu(EN)n]2+ for a Cu2+-EN solution is the key to a gravimetric method for determining the amount of Cu2+ in an unknown aqueous solution.
Octane has a density of 0.692 g/mL at 20 degrees celsius How many grams of oxygen are required to burn 1.10 gal of octance.
For the reaction: V2O5 + 6HCL---> 2VOCL3 + 3H2O If 13.65g of VOCl3 was produced in this reaction, how many grams of V2O5 were reacted in excess HCL
given that the length of the edge of a unit cell is 383 pm, determine the density of iridium in g/cm3.
what is the purpose of anhydrous CaCl2? Why it is important that none of the solid CaCl2 be included in the final distillation of your 1-bromobutane?
As air flows across the cooling coil of an air conditioner at the rate of 3856 kg/hr, its temperature drops from 26*C to 12*C. Determine the internal energy change in kJ/hr.
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