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Determine the density and atomic radius of tungsten (W) if it crystallizes in a face centered cubic arrangement with cell edge 399 pm.
what is the band gap energy in kilojoules per mole if bule diamonds absorb orange light with a wavelength of 675nm
Estimate the temperature at which calcium carbonate is likely to decomp under 1atm of pressure. Reaction: CaCO3(s) -> CaO(s) + CO2 (g) For this rxn: dHstandard = 177.8 kJ and dS standard= 160.5 J/K (notice unit differences)
The following reaction is spontaneous only below 3000 K. What conclusions can be drawn regarding this reaction? A + B ® AB
Write a balanced equation for the combustion of butane gas. If at a given moment butane is reacting at a rate of 0.400 mol L?1s?1, what are the rates of formation of products?
What is the enthalpy change for each of the following reactions- 1. Ag+ (aq) + Li(s) -->Ag(s) +Li+(aq) 2. Fe(s) + 2Na+(aq) --> Fe2+(aq) + 2Na(s) 3. 2K(s) + 2H2O(l) --> 2KOH(aq) + H2(g)
What is the balanced chemical reaction for the reaction of sodium sulfite and bleach (sodium hypochlorite(NaCLO) to produce sodium sulfate and sodium chloride
Determine the number of electrons transferred in the following reaction when it is correctly balanced.
What is the concentration of KMnO4 when you mix 2 mL of .160 M KMnO4 with 10 mL of .250 M oxalic acid. Assuming that it took 120 s to observe the color change in the reaction, what is the rate of the reaction
What is the correct order of the following inert electrolytes in their ability to increase the degree of dissociation of acetic acid?
Butadiene, C4H6(used to make synthetic rubber and latex paints) dimerizes to C8H12 with a rate law of rate=0.038L/(mol*s)[C4H6]^2. What will be the concentration of C4H6 after 2.0 hours if the initial concentration is 0.044M?
What are the three major buffer systems of the body and what are the chemical equations
nitrogen dioxide no2 cannot be obtained in a pure form in the gas phase because it exists as a mixture of no2 and n2o4.
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