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draw the structures of 1,1-dimethylcyclopropane and 1,2-dimethylcyclopropane. Is it possible to have 1,3-dimethylcyclopropane. Is this a correct name and different structure?
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.
A buffer solution of pH 5.3 is to be prepared from propionic acid and sodium propionate. The concentration of sodium propionate must be 0.50 M. What should the concentration of propionic acid be? Ka = 1.3 X 10-5
How many kJ of heat are needed to completely vaporize 1.30 moles of ? The heat of vaporization for water at the boiling point is 40.6 kJ/mole
What is the volume of the water displaced? (State the correct number of significant digits.) What is the uncertainty in this value?
Considering resonance, arrange the following molecules and ions in order of increasing SO bond order.
calculate the value of DGo in kJ for the combustion of 1 mole of methane to form carbon dioxide and gaseous water at 298 K.
What volume in liters of 0.94 M KOH solution should be added to a 0.090 L solution containing 9.1 g of glutamic acid hydrochloride
nknown gas effuses in 11.0 min. An equal volume of H2 in the same apparatus under the same conditions effuses in 2.56 min. What is the molar mass of the unknown gas
Need to calculate the heat formation of products, but have heat of formation for NaCl of concentration 1mol/L.
Assume that each photon has sufficient energy to eject one electron. (Note currents are reported as positive values.)
Suppose 50.0 ml of 0.25 m COCL2 solution is add to 25.0ml of 0.350 m NiCl2 solution calculate the concentration, in moles per liter , of each of the ions present after mixing . assume that the volumes are additive.
A pstient is administered mercury-197 to help evaluate kidney fuction. Mercury-197 has a half - life of 65 hours. what fraction of an initial of an initial does of mercury-197 remains after 6-0 days?
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