Chemistry
Chemistry splits into General Chemistry, covering atomic structure and periodic trends, and Stoichiometry, covering the mole-based conversion math that ties a balanced equation to real masses and concentrations. Together these two subcategories hold every chemistry tool currently on the site.
Categories in Chemistry
Stoichiometry
Molarity, molality, normality, Avogadro's number, and gas-phase molar mass are among the calculators handling the mole-based math that connects a balanced equation to real masses and concentrations, covering most problems that involve converting between grams, moles, and particles.
General Chemistry
Electron configuration, atomic mass, molar mass, percent composition, and bond order, plus periodic-trend tools like electronegativity and effective nuclear charge, make up the foundational chemistry subcategory most introductory courses draw from first.
Acid-Base & Buffers
Acid-base equilibrium calculators built around one shared idea: how a solution resists, or fails to resist, a change in pH. From pKa conversions to full buffer capacity math, these tools cover the chemistry behind why some solutions barely shift when acid is added while others swing wildly.
Mixtures & Solutions
Water and lab chemistry calculators built around one recurring question: how concentrated is a solution, and how does that concentration actually behave under real conditions. The Alkalinity and Ammonia PPM Calculators handle water-testing math, the Activity Coefficient Calculator corrects concentration for ionic strength, and the Alligation and Bleach Dilution Calculators work out mixing ratios for everything from pharmacy compounding to household sanitizing.