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Biochemistry homework:draw the structure of pGC deoxyribonucleic acid in the ionic form that would predominate at pH 7.0
Give the chemical formula and systematic name for aurous sulfide, which is named using the older nomenclature.
Water and 8 mol/L potassium nitrate solution are mixed to produce 700mL of a solution with a concentration of 6.mol/L. What volumes of water and potasium nitrate are used.
Assuming the enthalpies are equivalent to free energies (they arent, but lets make the assumption for the moment), what are the equilibrium constants for the two equilibria in the gas phase?
at 710. mm hg a sample of nitrogen gas occupies 625 ml what volume does the gas occupy if the temperature constant and the pressure increases to 760. mm hg
If the ph of Rainfall in Upstate New York is Found to be 4.0, and if the acidity is half due to Nitric acid (HNO3) and half due the two Hydrogen Ions released by Sulfuric acid
We know Pro can interrupt an a-helix, chemically, do you think it will cause any unusual problems in the determination of, angiotension II sequences? Explain.
Calculate the pH at 25 degrees C of a 0.25-M aqueous solution of oxalic acid (H2C2O4). (Ka1 and Ka2 for oxalic acid are 6.5 x 10^-2 and 6.1 x 10^-5, respectively.)
What volumes of .200 M HCOOH and 2.00 M NaOH would make 300 mL of a buffer with the pH of one made from 475 mL of .200 M benzoic acid and 25 mL of 2.00 M NaOH?
0.554g sample that is a mixture of oxalic acid, H2C2O4 and another solid that does not react with sodium hydroxide. If 29.58 mL of 0.550 M NaOH is required to titrate the oxalic acid in the 0.554g sample to the equivalence point
what is the concentration of H2 in the water in grams per milliliter? (See Appendix G in your textbook for the vapor pressure of water.)
Calculate the change in enthalpy for the Mg-HCl reaction using standard enthalpies of formation. Delta Hf for HCl(aq)=-167.2kJ
Suppose that a 4.0 L sample of gas at 1.0 atm is heated from 44°C to 53°C, during this process the volume doubles. What will the final pressure of the gas sample be
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