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

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Adam Hayes, Ph.D., CFA, is a financial writer with 15+ years Wall Street experience as a derivatives trader. Besides his extensive derivative trading expertise, Adam is an expert in economics and ...

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Mermaid Raid:The Problem Solvers must free a captive Mermaid from a gang of unruly porpoises. But there's just one catch: Alfe is terrified of the water.