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the electron in the n=5 level of a hydrogen atom emits a photon with a wavelength of 1280 nm. To what energy level does the electron move?
The compound aluminum chloride is widely used to control chemical reactions in industry. It is made by the following reaction: Al2O3(s) + 3C(s) + 3Cl2(g)→ 2AlCl3(s) + 3CO(g)
compare the stabilities of each of the four conjugate bases that would be formed from the doprotonation of the four different OH groups and determine which of hte OH is most acidic.
mercury barometer with an inner diameter of 10.00 mm? Recall that the area of a circle is A = ? r2 and that 1 N = 1 kg m/s2.
What volumes of the 0.10 M HA and 0.10 M NaA solution should be mixed to prepare the buffer?
Benzene is a organic solvent with the formula, The volume occupied by 1 micromole of liquid benzene and the volume occupied by 1 megamole of benzene as a vapor at STP (assume an ideal gas)
Calculate the volume the gas will occupy if the pressure is increased to 1.88 atm while the temperature is held constant
When 9 mL of a solution containing 2.5 M AlBr3 is diluted to 30 mL, a dilute solution is formed. What is the Br- concentration in 15 mL of the dilute solution?
Solutions with greatest long-wavelength UVA absorption: Name of strongest UVA absorbing ingredient
The sum of the substituent positions do not add up to lowest possible number. -The double bond in the ring does not contain the number one carbon. -Molecule has no cis-trans isomers. -The wrong name for the benzene derivative is used
What percentage of the Sr-90 that was formed in the detonation of the first fission bombs in August 1945 is still present in the environment in August 1982.
What molarity of aqueous aluminum sulfate solution can be expected to show the same conductivity as 0.030 M Na2SO4 at 36,000 units?
Important information about Degree of Unsaturation, Dieldrin, C12H8Cl6O, is a pentacyclic compound formerly used as an insecticide.
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