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For the series of spectral lines of atomic hydrogen with n1 = 3, which of the following wavelengths does not correspond to a wavelength predicted by the Rydberg equation? Rydberg equation: 1/? = (1.097 x 107 m-1) x (1/n12 - 1/n22) ----- A. 1875 nm B. 1282 nm C. 1184 nm D. 1094 nm E. 1005 nm
A gas system has initial volume and temperature of 8160mL and 467.0K. If the temperature changes to -151C, what will the resultant volume be in mL
A cell composed of a platinum indicator electrode and a silver-silver chloride reference electrode in a solution containing both Fe2 and Fe3 has a cell voltage of 0.719 V. If the silver-silver chloride electrode is replaced with a saturated calome..
consider a gas-phase reaction 2a-> r 2s with unknown kinetics. if a space velocity of 1/min is needed for 90% conversion of a in a plug reactor, find the corresponding space-time and mean residence time or holding time of fluid in the plug flow re..
Write the chemical equations representing the first, second, and third acid dissociations. 100mL 0.050 M phosphoric acid is titrated with 0.10 M NaOH. Calculate the pH of the solution after 25mL of NaOH have been added.
How many grams of acetic acid is this. If the mass of analyte is 10.20 grams, what is the mass % of acetic acid in the analyte
Calculate the pH at the equivalence point in titrating 0.120 solutions of each of the following with 8.0×10-2. hydrobromic acid
Draw a correct and complete arrow pushing mechanism for the reaction of aspirin and sodium bicarbonate to form sodium acetylsalicylate.
Calculate the pressure (in atm) exerted by 1.00 mole of acetylene at 125°C in a 20.0-liter container. The van der Waals constants for acetylene are: a = 20.0 L2 • atm/mol2, b = 0.100 L/mol.
How to to use low resolution absorption spectra to obtain values proportional to the true absorbance
helium atoms do not combine to form He2 molecules, yet He atoms do attract one another weakly through? (a). dipole-dipole forces
In what volume ratio should you mix 1.0M solutions of NH4Cl andNH3 to produce a buffer solution having pH = 9.80
consider the reaction of 5.0g of propane with 10.0ml ofmolecular bromine to form 2,2 dibromopropane and hydrogenbromide. a. look up the molecular weight of propane (44.1) and calculate the moles of propane present before the reaction
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