Why a mixture contains the three cations
The only reagents that you have are 6MHCl and 15M NH3. A mixture contains the three cations Ag+, Cu2+ and Al3+ Propose a procedure for the separation of these cations. Specify what cations are separated at each step of your procedure and why?
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Write down two reasonce structures for the nitrate ion (NO2-) and demonstrate the formal charge on each atom in each structure. Do these structures account for the fact that nitrogen bonds are of equal length?
When 90% of the mechanical energy of the system is absorbed through the aluminum, determine its temperature raise at the bottom of the incline? (Specific heat for aluminum is around 900 J/kg•°C.)
Consider the substance H2O, H3O+ and OH-; or NH4+ and NH3; or SH- and H2S,and explain the relationship between acid strength and formal charge.
Suppose that light having a wavelength of 550 nm. (Note: The distance from pupil to the retina is around 25.4 mm. Moreover, the space among the pupil and the retina is filled having a fluid having index of refraction n = 1.36).
The only reagents that you have are 6MHCl and 15M NH3. A mixture contains the three cations Ag+, Cu2+ and Al3+ Propose a procedure for the separation of these cations.
A diffraction grating consists of a spacing of d = 1500nm. It is employed with light of wavelength 500 nm. At what angle will the first-order diffraction image be viewed?
Explain the equilibrium constant of the reaction at this temperature when the starting concentration of H2 is 3.9 M, and the starting concentration of I2 is 3.00 M, and the equilibrium concentration of I2is6.00*10-2 .
The airplane engine gives a total thrust of 0.793 N perpendicular to the tethering wire. (i) Determine the angular acceleration of the airplane if it is in level flight.
Illustrate the skeletal structure of the compound whose structure would be consistent with the following information. The molecular formula C5H12O whose proton NMR spectrum contains a septet, quartet, triplet and doublet.
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