The isoelectric point (pI) is the pH at which a molecule has no net charge. To find pI from the Henderson-Hasselbalch equation, set the net charge of the molecule equal to zero and solve for pH. This equation is derived by considering the acidic and basic dissociation constants of the molecule to calculate the pH at which the net charge is zero.
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It is a simple ratio charge/mass or e/m .
The Poiseuille equation is derived from the Navier-Stokes equation for incompressible fluid flow in a cylindrical pipe, assuming laminar flow and steady state conditions. By applying assumptions of no-slip boundary conditions and conservation of mass and momentum, the equation simplifies to describe the flow rate in terms of viscosity, pressure gradient, and geometry of the pipe.
The wave function in quantum mechanics is derived by solving the Schrödinger equation for a given physical system. The Schrödinger equation describes how the wave function evolves in time, and its solution provides information about the quantum state of the system. Different boundary conditions and potentials will lead to different wave functions.
KI + CH3COOH --> HI + CH3COO-K+ ROOH + 2HI --> ROH + H2O + I2 TITRATION WITH SODIUM THIOSULPHATE TO DERIVE THE PEROXIDE VALUE 2NA2S2O3 + I2 (PURPLE) --> NA2S4O6 + NaI (COLOURLESS)
He developed an equation from which one can derive the probability of an electron having a specific value for location or velocity. He had nothing whatsoever to do with the discovery of neutrons.