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Learning objectives 11

Learning objectives 11 - total component of mass weight =...

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Chem 110 Recitation 11 Page 1 CHEM 110 Recitation 11 Learning Objectives Electrolytes Know the difference between a molecular compound and an ionic compound Know the definition of electrolyte. Know the difference between strong, weak and non-electrolytes. Be able to identify acids, bases, and salts. (Memorize the 7 strong acids and the 7 strong bases.) Be able to identify electrolytes and whether they are strong or weak. Be able to write the process that occurs when an electrolyte dissolves in solution. Be able to calculate the concentration if ions present when a strong electrolyte dissolves Concentration Dilution Know the definitions of the following concentration terms. Be able to convert between different concentration units. Be able to determine the concentration of species after dilution. Be able to determine concentration of species in solution when two solutions are mixed. mass fraction = mass
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Unformatted text preview: total component of mass weight % = mass fraction × 100% mole fraction = moles of component total moles X i parts per million = X i × 10 6 ppm = mass fraction × 10 6 parts per billion × 10 9 ppb parts per trillion × 10 12 ppt molarity = moles of solute liters of solution M molality = moles of solute mass (kg) of solvent m Solution process • Be able to explain what is happening on a molecular level when a substance dissolves. in solution. • Know the energies associated with the dissolution process. • Know what is meant by saturated and supersaturated. • Know what processes are “equal” when a solution is saturated. • Know the factors that affect solubility/ • Know the expected behavior of the solubility of salts in water as a function of temperature. • Know the trend in solubility of gases like N 2 and O 2 in water as a function of temperature. • Be able to read a plot of solubility vs. Temperature....
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