Solution interconverting molarity, moles

The concentration of a solution can be expressed in different terms (molarity, molality, parts by mass, parts by volume, and mole fraction). Because a concentration is a ratio involving mass, volume, and/or amount (mol), the various terms are interconvertible. 

Research workers are not consistent in the use of concentrahon units, and solubility relations, for example, may be based on mole fraction. Therefore it often becomes necessary to interconvert concentration units. To convert weight/weight values to molar concentration one must know the density of the soluhon. For example, what would be the molar concentration of a 2% aqueous solution of glycerol (MW, 92 g moP ) whose density at 25°C is 1.0030 g mL ... 

SECTION 4.5 The concentration of a solution expresses the amount of a solute dissolved in the solution. One of the common ways to express the concentration of a solute is in terms of molarity. The molarity of a solution is the number of moles of solute per liter of solution. Molarity makes it possible to interconvert solution volume and number of moles of solute. Solutions of known molarity can be formed either by weighing out the solute and diluting it to a known volume or by the diution of a more concentrated solution of known concentration (a stock solution). Adding solvent to the solution (the process of dilution) decreases the concentration of the solute without changing the number of moles of solute in the solution... 

Calculate the concentration of a solution in terms of molarity, molality, mole fraction, percent composition, and parts per million and be able to interconvert between them. (Section 13.4)... 

The concentration of a solution is expressed through different concentration terms, including molarity, molality, mass percent, volume percent, and mole fraction. These terms are interconvertible. Section 13.4)... 

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