test (2) - 1/3/2012 Stoichiometry Defined as the mass...

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1/3/2012 1 Review of Chemical Stoichiometry and Chemical Equilibria Jonyl L. Garcia , R.Chem., MSc. Chem. ( Cand. ) Chemistry Department Adamson University Ermita, Manila 1/3/2012 1 Analytical Chemistry 2 (Chem) Stoichiometry Defined as the mass relationships among reacting chemical species The stoichiometry of a reaction is the relationship among the number of moles of reactants and products as shown by a balanced equation 1/3/2012 Analytical Chemistry 2 (Chem) 2 Stoichiometric Calculations 1/3/2012 Analytical Chemistry 2 (Chem) 3 Mass A Moles A Moles B Mass B Divide by MW A Multiply by Stoichiometric Factor Divide by MW B Example 1 (a) What mass of AgNO 3 (169.9 g/mol) is needed to convert 2.33 g of Na 2 CO 3 (106.0 g/mol) to Ag 2 CO 3 ? (b) What mass of Ag 2 CO 3 (275.5 g/mol) will be formed? 1/3/2012 Analytical Chemistry 2 (Chem) 4 (a)7.47 g AgNO 3 (b)6.06 g Ag 2 CO 3 Example 2 What mass of Ag 2 CO 3 (276 g/mol) is formed when 25.0 mL of 0.200 M AgNO 3 is mixed with 50.0 mL of 0.0800 M Na
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test (2) - 1/3/2012 Stoichiometry Defined as the mass...

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