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Explain what percentage of hydrogen peroxide has been decomposed in Mixture #1 when 20.0 ml of O2 gas has been evolved? Assume your room temperature, 740torr of pressure, and a density of 3% H2O2 of 1.00g/ml. Don't forget to take into account the vapor pressure of water.
Nitrogen and hydrogen combine at high temperature, in the presence of a catalyst, to produce ammonia. N2(g) + 3H2(g) --> 2NH3(g) Assume 0.170 mol of N2 and 0.543 mol of H2 are present Initially
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.
The solubility of the ionic compound M2X3, having a molar mass of 205 g/mol, is 3.16 10-7 g/L. Calculate the Ksp of the compound.
what is the pH of a solution prepared by dissolving 4.5 g HCl in water to make 410 mL of solution?
consider the following unbalanced redox reactionnbspcr2o7 2-aq cus --------gt cr3aq cu2balance the equation in acidic
Name three similarities or differences between this hormone and insulin. Name three similarities or differences between this hormone and cortisone
Suppose that 0.82 g of water condenses on a 80.0 g block of iron that is initially at 24 C.If the heat released during condensation goes only to warming the iron block
A method for determining the quantity of dissolved oxygen in natural waters requires a series of redox reactions. Balance the following chemical equations in that series under the conditions indicated
Given a 0.010 M solution of a diprotic acid H2A with Ka1 = 2.9 x 10-5 and Ka2 = 5.3 x 10-6. The species present in the lowest concentration is
If 0.230g of sodium metal reacts with 0.355g of chlorine gas, what is the mass of sodium chloride produced
describe the error that has occured; that is, is the mass of the anhydrous salt remaining in the crucible reported as being too high or too low? explain.
a. set up the hamiltonian operator for the system of an electron interacting with a fixed nucleus of atomic number z
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