Analytical Chemistry Calculators

Analytical chemistry calculators provide essential tools for titration analysis, solution preparation, and quantitative measurements. These specialized calculators help students and laboratory professionals determine concentrations, calculate pH values, prepare standard solutions, and interpret spectrophotometric data with precision and accuracy.

Use comprehensive analytical chemistry tools for gravimetric analysis, buffer capacity estimation, ionic strength calculations, and conductivity measurements. Each calculator implements fundamental analytical principles including Beer-Lambert Law, Henderson-Hasselbalch equation, and gravimetric factors to support accurate laboratory work and chemical analysis.

⚠ Disclaimer: This calculator provides results based on standard formulas and simplified assumptions. It is intended for educational purposes only and should not be used for professional, medical, industrial, or experimental applications without expert verification.

Concentration from Titration Data

Volume of titrant (L) Normality of titrant (N) Volume of analyte (L)

C = (Vt × Nt) / Va

Normality ↔ Molarity Converter

Molarity (M) Equivalent factor (eq/mol)

N = M × eq factor

PPM / PPB Calculator

Mass of solute (mg) Mass of solution (kg)

ppm = mg/kg × 1e3, ppb = mg/kg × 1e6

Weight Percent Solution

Mass of solute (g) Mass of solution (g)

wt% = (solute/solution) × 100

Gravimetric Analysis Yield

Theoretical mass (g) Actual mass (g)

% yield = (actual/theoretical) × 100

Standard Solution Preparation

Molarity (M) Molar mass (g/mol) Volume (L)

Mass = M × MM × V

Titration Equivalence Point

Moles of titrant (mol) Moles of analyte (mol)

At equivalence, moles of acid = moles of base

Indicator Choice Calculator

pKa of acid pH at equivalence

Choose indicator with pKa ≈ pH at equivalence

Buffer Capacity Estimator

Moles of acid/base (mol) Volume of buffer (L)

β ≈ Δn / ΔpH, simplified as n/V

pH of Weak Acid

Concentration (M) Ka (acid dissociation)

pH = -log√(Ka·C)

pH of Weak Base

Concentration (M) Kb (base dissociation)

pOH = -log√(Kb·C), pH = 14 – pOH

pH of Strong Acid Solution

Concentration (M)

pH = -log[H⁺]

pH of Strong Base Solution

Concentration (M)

pOH = -log[OH⁻], pH = 14 – pOH

Henderson-Hasselbalch Calculator

pKa [A⁻] [HA]

pH = pKa + log([A⁻]/[HA])

Dilution of Stock Solution Calculator

Initial concentration (C₁) Final concentration (C₂) Final volume (V₂)

C₁V₁ = C₂V₂

Absorbance ↔ Concentration (Beer-Lambert Law)

Absorbance (A) Molar absorptivity (ε, L·mol⁻¹·cm⁻¹) Path length (cm)

A = ε·C·l

Spectrophotometer Calibration Calculator

Standard concentration (M) Measured absorbance (A)

ε = A / (C·l), assume l=1 cm

Conductivity of Solution Calculator

Cell constant (cm⁻¹) Measured resistance (Ω)

κ = K / R

Ionic Strength Calculator

Charge of ion (z) Concentration of ion (M)

I = 0.5 Σ ci·zi²

Gravimetric Factor Calculator

Molar mass of analyte (g/mol) Molar mass of precipitate (g/mol)

f = Ma / Mp