Learn how to calculate molarity from moles and volume or from mass and molar mass. Includes C = n/V, worked lab examples, unit conversions, and a free concentration calculator.
Learn how to use the half-life formula to find remaining amount, elapsed time, or half-life. Includes carbon-14 dating, medical isotopes, worked examples, and a free half-life calculator.
Learn how to calculate density using mass and volume, solve for mass or volume when density is known, and understand density units. Includes real-world examples and a free density calculator tool.
Learn how to calculate dilutions using C1V1=C2V2, what dilution factor means, and how to figure out how much stock and diluent to mix. Includes real lab-style examples and a free dilution calculator.
Learn how to calculate pH, pOH, H+ concentration, and OH- concentration quickly and accurately. Includes examples, formulas, and our free pH calculator tool.
Learn how to calculate molecular weight of chemical compounds quickly and accurately. Includes examples, formulas, and our free molecular weight calculator tool.