This lesson covers solved numerical problems on molarity, molality, mole fraction, and percentage concentrations to help you clearly understand solution concentration concepts in chemistry.

Both molarity and molality are measures of a chemical solution’s concentration. The primary difference between the two comes down to mass versus volume. Molarity (M) is the amount of a substance in a ...

Organometallic chemistry is the study of the synthesis, structure and reactivity of chemical compounds that contain metal-carbon bonds. These compounds are often used as homogeneous catalysts. Tuning ...

Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Thomas J. Brock is a CFA and CPA with more ...

Dec. 21, 2025 Superconductors promise loss-free electricity, but most only work at extreme cold. Hydrogen-rich materials changed that—yet their inner workings remained hidden because they only exist ...