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Write a hypothetical inner-sphere redox mechanism for the reaction of [Cr(H2O)6]2+ with cis-[Co(NH2CH2CH2NH2)2I2]+ (aq) in acid solution to give (ultimately) cis-[Cr(H2O)4I2]+, Co2+(aq), and [NH3CH2CH2NH3]2+."
The molar heat of vaporization of benzene at 1atm is 30.8kJ/mol. The boiling point of benzene at 1atm is 78.3C. Calculate the entropy change when 11.5g if benzene boils at this temperature
Calculate the volume of chlorine gas in liters, measured at 20 C and 762 mm Hg, required to react with this volume of seawater.
A solution of PbI2 has [Pb2+] = 4.5 x 10-5 and [I-] = 6.5 x 10-4. PbI2 has Ksp = 8.7 x 10-9. Write down the reaction that is taking place. Calculate Q.
what is the concetration of acetic acid and sodium acetate.
if iron is oxidized to fe2 by a copperii sulfate solution and 0.289 grams of iron and 21.0 ml of 0.433m copperii
How long would it take for 1.50mol of water at 100.0 degrees celsius to be converted completely into steam if heat were added at a constant rate of 16.0 J/s. The specific heat of liquid water is 4.18 J/(g*degrees celsius).
Chlorine has an average atomic mass of 35.453 amu. The main isotopes of chlorine are 35Cl which has an atomic mass of 34.968 amu and 37Cl, which has an atomic mass of 36.956amu. Given this, what is the percent abundance of each isotope in natural ..
radioactive isotope x has been found in rock units s and q. isotope x breaks down into isotope z with a half life of
consider a particle in a one-dimensional box of length l in its lowest energy ground stationary state. calculate the
One of the nuclides in spent nuclear fuel is U-235 , an alpha emitter with a half-life of 703 million years. How long will take for the amount of U-235 to reach 49.0% of its initial amount
A buffer (pH 3.70) was prepared by mixing 1.00 mole of formic acid and 1.00 mole of sodium formate to form an aqueous solution with a total volume of 1.00 L. To 400 mL of this solution was added 50.0 mL of 1.00 M NaOH. What is the pH of this solut..
A 0.9157g mixtureof CaBr2 and NaBr is dissolved in water and AgNO3 is added to the solution to form AgBr Precipitate. If the mass of the precipitate is 1.6930g, what is the percent by mass of NaBr in the original mixture
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