Chemistry Calculators (Page 3)
Concentration, molar mass, reactions and more chemistry tools.
Gay-Lussac's Law Calculator
Enter the initial pressure, initial temperature and final temperature; by Gay-Lussac's law P₁/T₁ = P₂/T₂ the tool instantly computes the final gas pressure at constant volume.
Grams to Moles Calculator
Enter the mass m in grams and the molar mass M (g/mol); using n = m / M the tool instantly converts grams to moles, a basic everyday step in stoichiometry.
Avogadro's Law Calculator
Enter the initial volume, initial amount of substance, and final amount of substance to compute the final gas volume at constant temperature and pressure via V₁/n₁ = V₂/n₂.
Equilibrium Constant Calculator
Enter the equilibrium concentrations and stoichiometric coefficients of each species in aA + bB ⇌ cC + dD; using Kc = ([C]^c·[D]^d)/([A]^a·[B]^b) the tool instantly computes the equilibrium constant.
Freezing Point Depression Calculator
Enter the van't Hoff factor i, cryoscopic constant Kf, molality b and the pure-solvent freezing point; using ΔTf = i·Kf·b the tool computes the freezing-point depression and the solution freezing point.
Boiling-Point Elevation Calculator
Enter the van't Hoff factor i, ebullioscopic constant Kb, molality b, and pure-solvent boiling point to compute the boiling-point elevation ΔTb = i·Kb·b and the solution boiling point.
Molality Calculator
Enter the solute moles and the solvent mass (kg); using b = n_solute / m_solvent the tool instantly computes the molality (mol/kg) of the solution.
Normality Calculator
Enter the moles of solute, the equivalence factor and the solution volume; using N = (moles × factor)/V the tool instantly computes the normality (eq/L).
Mole Fraction Calculator
Enter the moles of each component; using xᵢ = nᵢ / Σn the tool instantly computes each component's mole fraction, which always sums to 1.
STP Gas Moles Calculator
Enter the gas volume (L) at standard temperature and pressure (STP, 0 °C, 1 atm); by n = V / 22.414 the tool instantly computes the moles of gas.
Solution Density Calculator
Enter the mass (g) and volume (mL) of a solution or substance; by ρ = m/V the tool instantly computes the density (g/mL).
PPM Concentration Calculator
Enter the solute mass and total solution mass (same unit); using ppm = (solute / solution) × 10⁶ the tool instantly computes the parts-per-million concentration.