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Calculate the standard cell potential of a CulCu2+(1.0 M) half cell connected to a standard hydrogen electrode (SHE). What is the pH if Ecell = 0.48 V.
the growth rate drops 6 orders of magnitude and effectively reduces the crystallization rate to zero. Calculate the self-diffusion of this alloy system.
a 1.60 g sample of a large biomolecule a nonelectrolyte was dissolved in 18.0 g of carbon tetrachloride. the boiling
what is the relative error in the determination of a density for which the accepted value is 0.945 g*cm^-3 and the experimental value
If ammonia was added to a saturated solution of copper(II) iodate in a equilibrium with its precipitate, would the copper ion concentration increase, decrease, or stay the same. Why
A carbohydrate is a compound composed solely of carbon, hydrogen and oxygen. When 7.7467 g of an unknown carbohydrate( = 180.1560 g/mol) was subjected to combustion analysis with excess oxygen, it produced 11.3546 g CO2 and 4.6481 g H2O. What is i..
A saturated solution of lead (II) bromide is prepared by dissolving the solid in water. the concentration of lead (II) ion in the solution is found to be 0.0115 M What is Ksp for this compound
calculate the amount of solute (g or mL needed to prepare the following solutions: a) 150 g of a 40.0%(m/m)LiBr solution. b) 450 g of a 2%(m/m) KCl solution. c) 225 mL of a 15%(v/v) isopropyl alcohol solution
Calculate the change in internal energy of the following system: a 100.0- bar of gold is heated from 25 to 50 during which it absorbs 322 of heat. Assume the volume of the gold bar remains constant.
Nitrogen froms a trifluoride, NF3, but Nf5 does not exist. For phosphorous, both PF3 and PF5 are known. Write Lewis structures for NF3, PF3 and PF5 discuss possible explanations for the fact that PF5 is stable,
consider separate 1.0-l samples of heg and uf6g both at 1.00 atm and containing the same number of moles. what ratio of
Identical hard spheres of radius R are packed together to form a simple cubic lattice. What is the ratio a/R, where a is the edge length of the unit cell
Draw the type of allylic carbons present in the following (draw structure) a. 2,3,3-trimethyl-1-butene b. 1-methylcyclohexane
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