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For the cell reaction Cu(s) + 2Fe3+ ----> 2Fe2+ + Cu2+ Ecell=0.33V What is the value of the equilibrium constant at 25C for the cell reaction. Either 0.33, 3.82x10^5 or 1.46x10^11
The titration curve of a 1.00 M unknown acid solution shows that the pH at the equivalence point is 9.16 and the pH halfway to the equivalence
Assuming that the atoms are spheres in contact along the face diagonal, what is the radius of a Ar atom (in Angstroms)? An angstrom = 10-10 m or 10-8 cm.
Reaction of a single enantiomer of W produces a single enantiomer of Y as the only substitution product. X likewise reacts readily in water though at a slower rate than W; a chiral substitution product Z, C8H17OH, is again formed. Unlike W, howeve..
what is the free energy change (DG) when protons are pumped across the membrane from the side of the membrane with low concentration to the side with high proton concenration at body temperature (37C)? The membrane potential is 0.06. Report your a..
Ba(NO3)2 is 20.92 mass % chlorine, and a 1.000 g sample of the mixture in 500.0 mL of aqueous solution at 25 C has an osmotic pressure of 744.7 mm Hg. What are the mass percents of KCl, KNO3, and Ba(NO3)2 in the mixture?
Glycine has the structure NH2CH2COOH. it can lose a proton from the carboxyl group and form chelate rings bonded through both the N and one of the O atoms. Draw structures for all possible isomers of tris(glycinato)cobalt(III).
A dose of aspirin is 5.0mg/kg body weight has been prescribed to infant that weighs 8.5lbs. How many miligrams is needed.
what will the freezing points be of the resulting solution? kf(H2O)=1.86 C/m
Free radicals are also important in many environmentally significant reactions. For example, photochemical smog, which forms as a result of the action of sunlight on air pollutants, is formed in part by the following two steps.
Make the best match for each efficiency advantage to one mechanism for organizing enzymes in metabolic pathways. A. soluble enzymes in a lipid-enclosed volume
Assuming that 0.5 grams of a 1.0 gram sample is CaCO3, what should the concentration of HCl (M) be if you want to use 25.0 mL for the titration
a saline solution contains 150 mEq/L each of Na+ and Cl- how many moles of Na+ and Cl- are in 2.50L of the solution
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