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calculate ground state energy, 1st excited energy level, and wavelenght of an electronic transition between the 2 lowest energy states for an electron in a 1 dimensional box length of 2 Angstroms
how many grams of lead (II) chloride is produced when 13.87 g lead (II) nitrate combines with hydrochloric acid to produce lead (II) chloride and nitric acid?
Determine the mass of RbCN required to prepare a 500 mL solution which is .12 M RbCN (MW = 112 g/mol).
Calculate the k value associated with the reaction at 25 degrees celcius given the Gibbs free energy of formation of N2H4 is -419.15Kj/mol
An electrophilic addition is? Answer . a) An addition to an alkene initiated by a nucleophilic attack. b) An addition to an alkene initiated by an electrophilic attack
What mass of sucrose should be combined with 541 of water to make a solution with an osmotic pressure of 8.30 at 295 ? (Assume the density of the solution to be equal to the density of the solvent.)
For each of the following unbalanced equations, indicate how many moles of the second reactant would be required to react exactly with 0.275 mol of the first reactant. Show all work below.
two identical positive charges exert a repulsive force of 6.4x 10^-9 when seperated 3.2x10^- 10 m. calculate the charge of each
If the combustion gases consist of CO2, H2O, CO, O2, and N2 that exit at 1200 K and 2 atm, determine (a) the equilibrium composition of the product gases and (b) the rate of heat transfer from the combustion chamber. Is it realistic to disregard t..
If 1.00 g sodium bicarbonate and 1.00 g citric acid are allowed to react, how many grams of carbon dioxide will form?
A 280 mL stock solution contains 2.3 M Ca(CN)2. When 105 mL of the stock solution is diluted to 120 mL, how many moles of CN- ions will be contained in the dilute solution?
Select each of the reactions and observe the reactants taking part in the reactions. Suppose you are carrying out each of these reactions starting with five moles of each reactant. Observe that some reactants are in excess whereas some reactants l..
Three gases (8.00 of methane, CH4, 18.0 of ethane, C2H6, and an unknown amount of propane, C3H8) were added to the same 10.0-L container. At 23.0 degrees Celsius, the total pressure in the container is 3.50 atm. Calculate the partial pressure of e..
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