Chemistry Calculators

Molarity Calculator

Calculate the molarity of a solution from moles of solute and volume.

Dilution Calculator (C1V1=C2V2)

Calculate the volume needed to dilute a stock solution to a target concentration.

Ideal Gas Law Calculator

Calculate pressure, volume, moles, or temperature using PV = nRT.

Percent Yield Calculator

Calculate the percent yield of a chemical reaction.

Boyle's Law Calculator

Calculate the new pressure or volume of a gas at constant temperature.

Mass-to-Moles Calculator

Convert a mass of a substance to moles using its molar mass.

pH to pOH Calculator

Convert between pH and pOH for aqueous solutions at 25°C.

Mass Percent Concentration Calculator

Calculate the mass percent concentration of a solute in a solution.

Molality Calculator

Calculate the molality of a solution from moles of solute and mass of solvent.

Freezing Point Depression Calculator

Calculate how much a solvent's freezing point drops when a solute is dissolved.

Boiling Point Elevation Calculator

Calculate how much a solvent's boiling point rises when a solute is dissolved.

Titration Calculator (Acid-Base)

Calculate the unknown concentration of a solution from titration volume data.

Ideal Gas Density Calculator

Calculate the density of an ideal gas from its molar mass at standard conditions.

Molar Volume Calculator

Calculate the volume occupied by a given number of moles of gas at STP.

Percent Composition Calculator

Calculate the percent composition of an element within a compound.

Parts Per Million (PPM) Calculator

Calculate the concentration of a solute in parts per million.

Average Atomic Mass Calculator (Two Isotopes)

Calculate an element's average atomic mass from two isotopes and their abundances.

Henderson-Hasselbalch Calculator

Calculate the pH of a buffer solution using the Henderson-Hasselbalch equation.

Osmolarity Calculator

Calculate a solution's osmolarity from molarity and the number of dissociated particles.

Reaction Rate Calculator

Calculate the average rate of a chemical reaction from concentration change over time.

Dilution Factor Calculator

Calculate the dilution factor between an initial and final solution concentration.