Tools for Calculations & Analyses

**** Dilution calculator of mass concentration or molar concentration, PPM PPB Percentage calculation,

See how to mitigate indoor COVID-19 transmission in different indoor spaces.

Learn about and revise chemical calculations for Higher Tier students with this BBC Bitesize GCSE Chemistry (Edexcel) study guide.

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Formulas for calculating ppm & mg/m3, and sampling methods.

Water ppmV, ppmW, RH, Vapor Pressure, Dew Point

{**MANY USEFUL CALC LINKS!} ********* Diffusion flux [kg/m2s] tells how fast a substanse solved in another substance flows due to concentration gradients. Diffusion constants [m2/s] are given for several gases in water

*********The efficiency of a ventilation system may be related to temperature and/or pollution concentrations

Concentration percentage unit conversion between part per million and milliliter/liter, milliliter/liter to part per million conversion in batch, ppm ml/l conversion chart

Convert volume to weight for different substances and materials based on their density. Volume and calculated weight are in different units of measurement

Calculate mixing ratio GPK and GPP, dew point and wet-bulb temperatures, absolute humidity, enthalpy, PPM, water vapor and saturation pressure values

{Not sure this is accurate} Convert weight to volume for different substances and materials based on their density. Weight and calculated volume are in different units of measurement

{Note: This tool is very unspecific to environmental conditions, and cannot enable accurate dosing without significant additional calculations} Use the calculator below to determine the quantity of chlorine dioxide needed for an area in air

Calculate volume of Chlorine dioxide, gas per weight, it weighs 9.99 kg/m³ (0.00577 oz/in³). Materials weight to volume conversions

Forum Question: It is important to use the terms

Henry's Law. Gas solubility. Equilibrium concentration (saturation). Atmospheric partial pressures.

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{Concentrations of gases in air}

This PPM to mg/m3 conversion is based on the molecular weight of the chemical and it is different for every chemical.

This lesson will point out the difference between electron pairs and unpaired electrons in an atom using orbital diagrams.

{Includes chart of Important Standard Electrode (Reduction) Potentials.} The cell potential, Ecell, is the measure of the potential difference between two half cells in an electrochemical cell. The potential difference is caused by the ability of electrons to flow from …

The Bohr model and atomic orbitals. Using an element's position in the periodic table to predict its properties, electron configuration, and reactivity.

This page discusses atomic orbitals at an introductory level. It explores s and p orbitals in some detail, including their shapes and energies. d orbitals are described only in terms of their energy, …

uBlock Origin - An efficient blocker for Chromium and Firefox. Fast and lean. - gorhill/uBlock

A list of Firefox privacy and security preferences in a user.js file to modify the browser and harden it against privacy and security leaks.

Calculators, etc