Curie Notes 06: Chemical Formulas, Percent Composition and Empirical Formulas
A handful of weighings becomes a formula. I show you how to read one, how to find it from the balance, and how a decigram of radium chloride gave radium its atomic weight.
Read chemical formulas, calculate percent composition, find empirical and molecular formulas in four steps, and work out the water in a hydrate.
Marie Curie
November 8, 2026
32 min