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If all of the SCN- was not converted completely to FeNCS 2+ when the calibration curve was prepared, would this raise or lower the value of Keq? explain?
A student used 40.5mL of 0.48M sodium carbonate solution and 45.6mL of the hydrochloric acid solution. The substance in the beaker at the end of the experiment had a mass of 0.93g. Calculate the concentration of the hydrochloric acid solution.
If 34.0 mL lead(II) nitrate solution reacts completely with excess sodium iodide solution to yield 0.640 g precipitate, what is the molarity of lead(II) ion in the original solution?
Estimate the value of the equilibrium constant at 685 K for each of the following reactions. Delta H and S for BrCl(g) is 14.6 kJ/mol and 240.0 J/ mol * K, respectively. 2 NO_2(g) > N_2O_4(g.
Identify the rate determining step, reaction intermediates and the experimental rate law (intermediates can not be in the rate law)
Using the van der Waals equation, calculate the pressure exerted by 15.0 mol of carbon dioxide confined to a 3.00-L vessel at 56.0 oC. Note: Values for a and b in the van der Waals equation: a = 3.59 L2.atm/mol2, and b = 0.0427 L/mol.
Calculate concentration of soil organic matter in content given the concentration of organic carbon
How much energy in kilojoules is required to convert 100 mL of water at its boiling point from liquid to vapor?
If you fill the larger tank with oxygen to a pressure of 115 , to what pressure should you fill the acetylene tank to ensure that you run out of each gas at the same time? Assume ideal behavior for all gases.
What is the molar mass of this substance, express your answer in g/mol and determine the moloar concentraitions Cr 2 O 7 ^2 and of K + ?
what is the molar mass of a sample of gas that has a dnesity of 1.09 g/L at 1.02 atm pressure and 25.0C.
Determine the mole fraction of each component to at least three significant figures.
The label on an aerosol spray can contains a warning that the can should not be heated to over 130°F because of the danger of explosion due to the pressure increase as it is heated.
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