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Suppose 5.00g of helium gas is added to a 1.00L balloon containing 1.00g of helium gas, define what the new volume of the balloon is?
Use the rydberg equation to calculate the wavelength in nm of the photon when an electron in a hydrogen atom undergoes a transition from n=6 to n=2
Find P given that 25 mL of toluene and 25 mL of an aqueous solution containing 0.000330 moles of an organic compound were shaken together and 31 % was extracted into the organic phase.
Solutions, suspensions, and colloids all have solutes interacting with solvents. Which have solute particle diameters below 1,000nm. a. solutions
Calculate the degrees of unsaturation in a compound with the molecular formula C3H6 and draw two possible structures
One way to analyze sulfur is by comustion of the sample, which produces SO2 and SO3 that can be bubbled through H2O2 to produce H2SO4. The H2SO4 is then titrated against NaOH in the reaction H2SO4 + 2NaOH ? Na2SO4 + 2H2O.
A graduated cylinder contains 131 mL of water. A 18.0 g piece of iron (density = 7.86 rm{g/cm^3}) and a 25.0 g piece of lead are added.
what is the net ionic equation potassium hydroxide and iron(III) nitrate.
Laser atomic fluorescence excitation and emission spectra of Na in an air acetylene flame are shown. in the excitation spectrum the laser was scanned through various wavelengths while the detector monochromator was held fixed near 589 nm.
A student went out of the lab to talk on the phone and returned to find that their partner had neglected to monitor the ice bath used to chill their diazonium ion solution
A mixture containing 0.232 mol He(g), 0.163 mol H2(g), and 0.161 mol N2O(g) is confined in a 22.00 L vessel at a constant temperature. The total pressure is 1.16 atm. Calculate the mole fraction of N2O(g) in the mixture.
Justify the Born-Oppenheimer approximation based on vibrational frequencies and the timescale for electron motion.
For the reaction, A(g) + B(g) => AB(g), the rate is 0.579 mol/L.s when the initial concentrations of both A and B are 2.00 mol/L. If the reaction is first order in A and second order in B, what is the rate when the initial concentration of A = 2.3..
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