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Derive an equation for the temperature dependenc of the vapor pressure of a liquid (analogous to the integrated form of the Clausius. Clapeyron equation) assuming that the vapor has the equation of
A thin plate of copper is suspended in seawater. If the corrosion rate is 0.9 mpy (mils per year) and the plate is a square of dimension 3.5 in. per side, how much weight loss (in mg) is expected in
One series of lines of the hydrogen spectrum is caused by emission of energy accompanying the fall of an electron from outer shell to the fourth shell. The lines can be calculated using the Balmer-R
Draw orbital-filling diagrams for atoms with the following atomic numbers. Show each electron as an up or down arrow, and use the abbreviation of the preceding noble gas to represent inner-shell el
Calculate ?H° for each of the following reactions using the data in Appendix 4: 4Na(s)+O2(g) ? 2Na2O(s) 2Na(s)+H20(l) ? 2NaOH(aq)+H2(g) 2Na(s)+CO2(g) ? Na2O(s)+CO(g) Explain why a water or carbo
Which atom in each of the following pairs has a larger radius. (a) Na or K (b) V or Ta (c) V or Zn (d) Li or Ba
Consider the following function. f(x) = x^3 ln x b) Use l'Hospital's Rule to determine the limit as x ? 0+, c) Use calculus to find the minimum value., d) Find the interval where the function is con
Polar solute, polar solvent. Nonpolar solute, Nonpolar solvent. Or Nonpolar solute, Polar solvent
Optical fibers allow the fast transmission of vast amounts of data. In one type of fiber, the wavelength of transmitted light is 1.3 X 10^3nm. (a) What is the frequency of the light
The amount of energy released when an electron adds to a neutral atom to give a negative ion is called the atom's electron affinity
Calculate the number of electrons transferred in the following reaction when it is correctly balanced. C5H8O(g) + O2(g)---> CO2(g) + H2O(l)
Calculate E°cell for the reaction between iodine and magnesium. I2(s) + Mg(s) Mg2+(aq) + 2 I-(aq) Use data from a table of standard reduction potentials as needed. possible answers are
Write a balanced chemical equation for the following reaction in a basic solution. ClO4-(aq) + Cu(s) ---> ClO3- (aq) + Cu(OH)2(s) 4 stars for whoever answers correctly
Calculate the pH in the cathode compartment if the cell emf = 0.67 V when PNO = 1.00 atm, [Sn4+] = 0.10 M, [NO3-] = 0.010 M, and [Sn2+] = 0.020 M
Copper(I) ions in aqueous solution react with NH3 according to, Cu+ + 2 NH3 <----> Cu(NH3)2+ Kf = 6.3x10^10 M-2 Calculate the solubility of CuBr (Ksp = 5.3x10^-9) in a solution in which the eq
A 0.160-mole quantity of NiCl2 is added to a liter of 1.20 M NH3 solution. What is the concentration of Ni2 ions at equilibrium. Assume the formation constant* of Ni(NH3)62 is 5.5 × 108.
Consider an amphoteric hydroxide, M(OH)2(s), where M is a generic metal. Estimate the solubility of M(OH)2 in a solution buffered at pH = 7.0, 10.0, 14.0
Calculate w (in kJ) when 538 g iron (III) oxide (MM = 159.7 g/mol) reacts with excess carbon to produce carbon dioxide gas at 479 K: 2Fe2O3(s) + 3C(s) ? 4Fe(s) + 3CO2(g)
Calculate the change in entropy (in J/K) for the following reaction at 298 K: C(s) + H2O(g) ? CO(g) + H2(g)
Balance the following equation using half reactions. Write the half reactions in net ionic form if they occur in aqueous solutions a.
Calculate the change in entropy (in J/K) when a 44.0 g of nitrogen gas is heated at a constant pressure of 1.50 atm from 19.3 ºC to 86.5 ºC.
Calculate the change in entropy (in J/K) when a 67.9 g of water is heated from 14.8 ºC to 74.0 ºC at 1 atm. (The specific heat is 4.184 J/(g-K).)
Calculate ?G (in kJ) at 65 oC for the reaction- N2O(0.0024 atm) + H2(0.24 atm) ? N2(846.0 atm) +H2O(l)
How many hydrogens are in C16H?, which has 3 ring(s) and 8 double bond(s)? How many hydrogens are in C8H?O2, which has 2 ring(s) and 1 double bond(s)
Calculate the pH for each of the following cases in the titration of 50.0 mL of 0.100 M HClO(aq) with 0.100 M KOH(aq). (a) before addition of any KOH