Science
Chemistry, physics, constants and scientific conversions.
7 tools
100% localMolar mass of a formulaEnter a chemical formula (H2O, C6H12O6, Ca(OH)2) and get its molar mass, element by element.Open100% localDilution and concentrationThe CโVโ = CโVโ rule: how much stock solution to take to reach the concentration you want.Open100% localIdeal gas lawPV = nRT: leave the unknown blank and the other three determine it.Open100% localRadioactive decayHow much of a sample is left after a given time, from its half-life.Open100% localPhysical constantsThe fundamental constants, with their symbol, exact value and unit.Open100% localpH and ion concentrationMove between pH and the concentration of HโOโบ and OHโป ions, in both directions.Open100% localOhm's law and powerVoltage, current, resistance, power: give any two and the other two follow.Open