Why does one begin a column elution with non polar solvents
why does one begin a column elution with non polar solvents and progress to more and more polar solvents?
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why does one begin a column elution with non polar solvents and progress to more and more polar solvents
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A. Write a net ionic equation . B- for the reaction in part a, write the equilibrium constant from a consideration of Kb and Kw. C- calculate the h3o^+ for a 0.45 M nh4cl solution . D- calculate the percent of hydrolysis of 0.45 M NH4Cl.
An IC NMOS transistor has W=100μm, L = 10μm,μnCox= 20μA/V2, VA= 100 V, γ = 1/2 V1/2, Vt0= 1V, and 2φf= 0.6V. calculate the value of Vt at VSB= 4V. Also for VGS=3V and VDS=5V, Calculate ID for VSD = 0V and for VSB = 4V
A point charge 8.00 nC is at the center of a cube with sides of length 0.200m. compute the electric flux through the surface of the cube
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