IDITOL
The science of molecules — organic chemistry, biochemistry and chemical engineering, explained, with the calculators every chemist needs.
From finding the molar mass of a formula and preparing a solution to the right molarity to diluting a stock, estimating pH, working the ideal gas law, and checking a reaction’s percent yield, Iditol pairs free hands-on chemistry calculators with practical guides and a richly illustrated museum. Learn smarter, work with confidence.
Chemistry Tools & Calculators
Free tools for every bench and problem set — molar mass calculator, molarity calculator, dilution calculator, pH calculator, ideal gas law calculator, and percent yield calculator.
Molar Mass Calculator
Type any chemical formula — subscripts, nested parentheses, and hydrates like CuSO4·5H2O included — for its molar mass in g/mol, with a per-element breakdown and mass percentages
Molarity Calculator
Solve for molarity, mass, or volume with M = n/V and n = mass ÷ molar mass — enter the molar mass directly or let a chemical formula supply it, in litres or millilitres
Dilution Calculator
Solve C1·V1 = C2·V2 for any unknown and see the volume of solvent to add (V2 − V1) — mix molar and millimolar concentrations with litre or millilitre volumes
pH Calculator
Convert between pH, pOH, [H⁺], and [OH⁻] at 25 °C, or find the pH of a strong acid or base from its concentration — every value plus an acidic, neutral, or basic verdict
Ideal Gas Law Calculator
Solve PV = nRT for pressure, volume, amount, or temperature with full unit choice — atm/kPa/Pa, L/mL/m³, and K/°C — using R = 0.082057 (or the SI 8.314)
Percent Yield Calculator
Percent yield = (actual ÷ theoretical) × 100 in grams or moles, or build the theoretical yield from expected moles × molar mass — with a note on what over 100 % means
Museum of Chemistry & the Elements
Wander an immersive museum of the science of matter — the pioneers who built chemistry alongside the chemical elements in real samples, the tools of the chemist’s lab, and the matter and molecules that make up the world, each in its own gallery, so you can get to know the story behind every great discovery: how each one came to be, what makes it matter, and the role it plays in the science of molecules.
Tour the museum →From the Journal
Fresh guides on organic chemistry, biochemistry, and chemical engineering, reactions and synthesis, and the elements, plus practical tips for solving problems, preparing solutions, and making sense of the chemistry behind every calculation.
The Molecular Symphony of Life: Understanding Biochemical Reactions at the Cellular Level
The Molecular Symphony of Life: Understanding Biochemical Reactions at the Cellular Level In every living organism, from towering redwoods to microscopic plankton, a vast network of biochemical reactions sustains life…
The Molecular Compass: Understanding Biochemical Analysis Through Iditol’s Lens
The Molecular Compass: Understanding Biochemical Analysis Through Iditol’s Lens Biochemical analysis stands at the crossroads of chemistry and biology, offering profound insights into life’s molecular mechanisms. This field enables scientists…
The Science of Molecular Alchemy: Unveiling the Art and Precision of Drug Design
The Science of Molecular Alchemy: Unveiling the Art and Precision of Drug Design In an era where precision medicine is revolutionizing healthcare, the process of creating life-saving medications has evolved…
The Art of Synthesis Techniques: A Deep Dive into Iditol’s Methodologies
The Art of Synthesis Techniques: A Deep Dive into Iditol’s Methodologies Synthesis techniques form the backbone of innovation within the iditol community, bridging theoretical knowledge with practical application. These methods…
Unraveling Reaction Mechanisms: A Deep Dive into Molecular Transformations
Unraveling Reaction Mechanisms: A Deep Dive into Molecular Transformations Reaction mechanisms lie at the heart of chemical transformations, revealing the intricate dance of atoms and molecules during a reaction. These…
The Intricate Dance of Life: Exploring Biochemical Pathways Through the Lens of Iditol
The Intricate Dance of Life: Exploring Biochemical Pathways Through the Lens of Iditol Biochemical pathways are the invisible choreographers orchestrating every aspect of life at the molecular level. From energy…
Keep Learning
Practical know-how on stoichiometry, solution preparation, and reaction analysis, plain-language explainers on molar mass, molarity, pH, and the gas laws, and seasoned tips for first-year students and seasoned chemists alike — everything you need to dig deeper and work with confidence.
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