Conductance

The De Broglie wavelength of a particle is given by: Where: - is Planck’s constant, - is the mass of the particle, - is the velocity of the particle. Substitute the given values into the formula: Thus, the De Broglie wavelength is .

The pH of a solution is given by the formula: Substitute the given value of : Using logarithmic properties: Thus, the pH of the solution is .