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If the emitted green light corresponds to an electron dropping from that excited state back down to the ground state, what is the energy spacing (in aJ) between the highest occupied and lowest unoccupied orbitals. The element used is Thallium.
sodium hydrogen carbonate (NaHCO3) is mixed with 10.0 grams of sodium carbonate in enough de-ionized water to give a total volume of 250.0 ml. What is the pH of the resulting solution
Calculate the molecular weights of the 5 congeners listed above. What do the trends of log KOA, log KOW, and the negative log of water solubility vs. molecular weight indicate about the relationship between molecular weight and
What is the mole fraction of solute and the molal concentration for an aqueous solution that is 19.0% NaOH by mass?
Calculate the equilibrium concentrationsfor this dissolution reaction if one mole of the solid is placed in 1.00 L of water (assume adding the solute does not change the volume of the solution
If a 1-mole sample of a real gas from a compressed gas cylinder goes from 230 atm to 1 atm and from a volume of 1cm3 to 195cm3, what is the entropy change for the expansion if it is assumed to be isothermal.
Adenosine monophosphate (AMP) is a regulatory molecule in metabolic processes such as glycolysis and gluconeogenesis. For example, it stimulates the glycolytic enzyme phosphofructokinase, and therefore ATP production, and it inhibits the gluconeog..
A 800 mL sample of a saturated aqueous solution of calcium oxalate, CaC2O4, at 95 degrees C is cooled to 13 degrees C. How many milligrams if calcium oxalate will precipitate?
What is the PH of 5ml 0.10 M HC2H3O2 + 5ml H2O. Can you also explain how to approximate when finding [H+].
Calculate the Energy of dissolving in kilojoules/mole if 2.56 grams of CaBr2, calcium bromide, are dissolved in 50 mL of water in a calorimetric cup with a temperature rise of 4.5° C
If all the species are at standard conditions except [H+], at what pH will this reaction have a potential of zero? The standard reduction potentials are 1.78 V for H2O2 and 1.36 V for Cl2.
which of the following alkyl halides reacts most rapidly via SN1 solvolysis reaction in hot methanol? A) 1-iodo-1-methylcyclohexane
In the titration of ascorbic acid with potassium iodate in the presence of potassium iodide, what happens when an excess of potassium iodate
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