Avogadro's Number Calculator Avogadro's Number Calculator Convert between mass, moles, molecular weight, and number of atoms Avogadro's number is the number of particles (atoms, molecules, ions, etc.) in one mole
Atom Economy Calculator Atom Economy Calculator Calculate the efficiency of chemical reactions in green chemistry What is Atom Economy? Atom economy is a measure of the efficiency of a chemical
Air-Fuel Ratio (AFR) Calculator Air-Fuel Ratio (AFR) Calculator Calculate the stoichiometric air-fuel ratio for complete combustion Select Common Fuel Custom Fuel Select a fuel i Choose from common hydrocarbon fuels
pKa Calculator pKa from pH pKa from Ka pH: Conjugate base concentration [A-]: M mM µM Weak acid concentration [HA]: M mM µM Result pKa: Using Henderson-Hasselbalch equation: pH =
Percent Ionic Character Calculator Calculate from: Electronegativity Dipole Moment Electronegativity Method First atom: Select an element χ₁ (Electronegativity): Second atom: Select an element χ₂ (Electronegativity): Difference in electronegativity (Δχ): Dipole
Number of atoms of each element in the compound First element i H ... Second element i C ... Third element i O ... Fourth element i N ... Fifth
1st Element Atom Select an element No. of atoms 1 2 3 4 5 6 7 8 9 10 11 12 2nd Element Atom Select an element No. of atoms
First element Select an element ... Second element Select an element ... Electronegativity of first element (χ) i - ... Electronegativity of second element (χ) i - ... Electronegativity difference
Element Select an element ... Atomic number: - Atomic mass: - The electron configuration of the element is: - The valence electrons are: - Aufbau Principle Hund's Rule Shorthand Method
Chemical Name Calculator Determine the name and formula of ionic compounds by selecting cations and anions. Search by formula name Cation symbol i Cations are positively charged ions. For example,