Chemistry Calculators & Tools

🧪 Molarity & Dilution

Calculate concentration (M = n/V) and Dilution (C₁V₁ = C₂V₂)

Solute Amount (moles):

Solvent Volume (L):

🧬 Ideal Gas Law (PV=nRT)

Solve for any state variable

Solve For:

Pressure (atm):

Volume (L):

Temperature (K):

Moles (n):

🍋 pH & pOH Solver

Calculate pH, pOH, [H⁺], or [OH⁻]

Given Value Type:

Enter Value:

⚖️ Chemical Molar Mass

Estimate molar mass of simple compounds

Chemical Formula (e.g. H2O, NaCl, CO2): Supports simple formulas like H2SO4, NaOH

⚗️ Stoichiometry Calculator

Mole-to-mole and mass conversions

Given Amount:

Given Unit:

Molar Mass of Given (g/mol):

Mole Ratio (Given : Wanted):

:

Molar Mass of Wanted (g/mol):

📊 Percent Composition

Calculate mass percent of elements

Element Mass (g):

Total Compound Mass (g):

🌡️ Boiling Point Elevation

ΔTb = i × Kb × m

van 't Hoff factor (i): NaCl=2, CaCl₂=3, sugar=1

Kb (°C/m): Water=0.512, Benzene=2.53

Molality (mol/kg):

💧 Henderson-Hasselbalch (Buffer pH)

pH = pKa + log([A⁻]/[HA])

pKa of acid: Acetic acid=4.76

[A⁻] Conjugate Base (M):

[HA] Weak Acid (M):

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