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A compound CN is a weak organic base; a 3.50 x 10-2 M solution has a pH = 11.3. Calculate the kb for CN. The reaction is CN+H2O-->CNH+ + OH-
List the following compouns from highest to lowest frequency.
Calculate the pH for the following cases in the titration of 25.0mL of 0.2M cyanic acid (HCNO, pKa=3.66) with 0.2M RbOH solution
Calculate the partial pressures of the gases if the total pressure is 2.00atm at a given temperature.
What is the maximum kinetic energy of a photoelectron ejected from cesium by 555 nm light? Note that if the wavelength of the light used to irradiate the cesium surface becomes longer than 660 nm, no photoelectrons are emitted.
Treatment of 2-cyclohexenone with HCN/KCN yeilds a saturated keto nitrile rather than an unsaturated cyanohydrin. Show the structure of the product, and propose a mechanism for the reaction.
Is there an analytical technique we could employ to verify that the camphor is also racemic? What type of instrument would you use? What kind of results would you expect from a racemic product?
You have discovered a new element with an atomic weight of 260 g/mol and a density of 30 g/cm3. If the atoms pack on a BCC lattice what is the hard sphere atomic radius R (in nm)
imagine that you have two iron blocks one with a mass 226 g at a temperature of 46.0 oc and another with a mass 380 g
A 100. mL sample of 0.10 M HCl is mixed with 50. mL of 0.12 M NH3. What is the resulting pH?(kB FOR NH3= 1.8 x 10^-5)
0.134 mole of kcl and 0.248 mole of cacl2 were dissolved in water. calculate the total number of moles of cl- ions in the solution.
basketball with a volume of 3.50 Liters is left in a car when the temperature is 298 K. What will the volume of the ball be as the car heats up to 305 K during the day?
How many kilowatt-hours of electricity would be saved? b) How many 2,000-lb tons of SO2 would not be emitted. c) If the utility can sell its rights to emit SO2 at $800 per ton, how much money could the utility earn by selling the SO2 saved by a si..
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