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When an H-atom relaxs from n=6 to n=2, what is the wave length of the photon emitted? please show work, might be Bohr's formula.
Which step is the rate determining step on a reaction?
What volume of 0.200M Hydrochloric acid must combined to 250mL of 0.300M C8H7NaO3 to produce a buffer of solution with a pH of 3.37?
Draw the pictures of the overlap of the atomic orbitals to make all of the molecular orbitals and for any non-bonding orbitals as well.
Determine the mass of CuSO4 · 5H2O that must be used to prepare 250 mL of 0.88 M CuSO4(aq).Answer in units of g.
The radius of a gold atom is 144 pm. How many gold atoms would have to be laid side by side to span a distance of 2.63 mm?
In a reaction between pure acetic acid and sodium bicarbonate, 10.1 grams of sodium bicarbonate was added to 21.0 mL of acetic acid. Which reactant is the limiting reactant in this reaction?
Aluminum reacts with excess hydrochloric acid to form aqueous aluminum chloride and 36.8 mL of hydrogen gas over water at 27°C and 764 mmHg. How many grams of aluminum reacted?
A gas expands and does P-V work on the surroundings equal to 328 J. At the same time, it absorbs 108 J of heat from the surroundings. Calculate the change in energy of the gas.
The element copper has an atomic weight of 63.5 and consists of two stable isotopes copper-63 and copper-65. The isotope copper-63 has an atomic mass of 62.9 amu and a percent natural abundance of 69.1 %.
Calculate the Ki for a competitive inhibitor whose concentration is 6.5 x10-5 M that increases the Km of the substrate by 24.5%.
Comment of the fact that erythro-2,3-dibromo-3-phenylpropanoic acid undergoes elimination by an E1 pathway in water solvent, but by and E2 pathway when acetone is used as the solvent.
A white colored salt contains a cation from group 4. It has no reaction with concentrated H2SO4 or AgNO3. It produces an insoluble product with acidic BaCL2
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