CHEM 112 Lecture Notes - Analytical Chemistry, Reagent, Cyclohexene

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Solvent determines whether the solution exists as a solid, liquid, or a gas. However, for learning purposes, the aqueous (aq) solution will be used as a solvent. Solute is the material being dissolved by the solvent. Aqueous reactions can be grouped into three general categories: precipitation reactions, acid-base neutralization reactions and oxidation-reduction (red ox) reactions. Molarity is a solution property defined as the number of moles solute per liter of solution. Molarity (m) = (amount of solute, in moles / volume of solution, in liters) The term m stands for the term molar or mol/l. Problem: a solution is prepared by dissolving 25. 0 ml ethanol, c2h5oh (d= 0. 789 g/ml), in enough water to produce 250. 0ml solution. Now apply the definition of molarity to this answer. Thus divide the moles of c2h5oh by the solution size, 0. 2500l. Molarity = (0. 428 mol c2h5oh / 0. 2500 l soln) = 1. 71m c2h5oh.

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