# Chemistry

Routine chemistry calculations run through the mole, the unit that links a substance's mass to its number of particles. From there come molarity and dilution (C1V1 = C2V2), pH, the ideal gas law, reaction stoichiometry and balanced equations. A hydrochloric acid solution at 0.01 mol/L, for example, has a pH of about 2.

## Tools

- Molar Mass Calculator (Coming soon): Calculate the molar mass of a chemical formula, such as H2SO4 or Ca(OH)2, from standard atomic weights.

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