Ionic compound naming, formulas, and fundamental chemistry tools
Calculate the percent ionic character of a chemical bond from the electronegativity difference (Pauling formula) or from…
Calculate pKa from the acid dissociation constant Ka using pKa = −log(Ka), or from pH and concentrations using the Henderson-Hasselbalch…
Calculate bond order from bonding and antibonding electrons using molecular orbital theory. Find bond type (single, double,…
Calculate the effective nuclear charge (Z_eff) for any element using Slater's rules. Find the shielding constant S, Slater…
Find the ground state electron configuration, noble gas shorthand notation, valence electrons, and unpaired electrons for…
Calculate absorbance, concentration, path length, or molar absorptivity using Beer's law (A = ε·l·c). Convert between transmittance…
Calculate the atomic mass of any atom from its number of protons and neutrons using the formula A = Z + N. Shows results…
Calculate the electronegativity difference between two elements and determine whether their bond is nonpolar covalent, polar…
Calculate the average atomic mass of any element from its isotope abundances and masses. Supports 2–4 isotopes, percentage…
Find the name and formula of any ionic compound by selecting a cation and anion. Includes molar mass in metric (g/mol) and…
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