## Rydberg Equation Calculator  λ= Wavelength of the emmited light (electromagnetic rediation) in the vacuum ; R = Rydberg Constant (1.097x 107 m-1) ; Z = Number of proton in the nucleus of the element; nf = Principal quantum number of final state; ni = Principal quantum number of the initial state

## Mulliken scale of Electronegativity: Calculator  XM =Electronegativity of an element ; IE = Ionization Energy ; EA =Electron Affinity

## Pauling scale of Electronegativity: Calculator  XA , XB = Electronegativity of element A and B , such that XA > XBEAA =Bond energy of the A-A bond; EBB =Bond energy of the B-B bond;

EAB =Bond energy of the A-B bond;

## Magnetic Moment (Spin Only)  μ = Magnetic Moment ;  n = Number of unpaired electron;

## Curie's law Calculator  μeff = Magnetic Moment ; XM = Molar Suseptibility ; T =Temperature ; B.M= Bohr Magneton

## Preparing Solution by Dilution:Strength Calculator  Vini = Volume of the solution before dilution , Vfin = Volume the solution after dilution , Sini= Initial strength of the solution after dilution, Sfin= Final strength of the solution after dilution

## Normality Calculator ( Making a solution of solid solute)  N=Normality of the Solution ; Wsolute = Weight of the Solute ; V = Volume of the solution;

Mw = Molecular Weight of the Solute; n = Equivalence Factor (basicity of an acid or acidity of a base/Number of electron transfer per mole reaction)

## Chemical equation balancer  ## Titration  V1 = Volume of the 1st solution , V2 = Volume of the 2nd solution , S1= Strength of the 1st solution, S2= Strength of the 2nd solution

## Molecular Weight Calculator  