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concentrations
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Concentration and dilutions exercises
Concentration and dilutions exercises such as "How many millilitres of ethanol are required to prepare 80mL of a 70.0%v/v solution?"
Concentration and dilutions of solutions
Concentration refers to the amount of solute present in a given quantity (known volume) of a solution. Scientists used different methods to express concentration. Depending on the method, the units...
Solutions and concentrations
Learn what a solute is and how it relates to a solution and a concentration. In chemistry, we discuss solutes, solutions and concentrations to describe different substances. There are also units we...