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Clicker Question: There are ______ moles of H atoms in 5 moles of acetic acid (HC 2 H 3 O 2 ).

Clicker Question: There are ______ moles of H atoms in 5 moles of acetic acid (HC 2 H 3 O 2 ). 4 5 10 15 20 25. Clicker Question: 7.6 moles of which of the following contains the largest number of atoms. Ca(NO 3 ) 2 H 2 O PbCO 3 C 6 H 12 O 6 PbI 2 Ca 3 (PO 4 ) 2.

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Clicker Question: There are ______ moles of H atoms in 5 moles of acetic acid (HC 2 H 3 O 2 ).

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  1. Clicker Question: There are ______ moles of H atoms in 5 moles of acetic acid (HC2H3O2). • 4 • 5 • 10 • 15 • 20 • 25

  2. Clicker Question: 7.6 moles of which of the following contains the largest number of atoms. • Ca(NO3)2 • H2O • PbCO3 • C6H12O6 • PbI2 • Ca3(PO4)2

  3. Announcements • ALEKS due today. • Quiz due Friday

  4. ALEKS Tips and TricksCalculating Molar Masses

  5. ALEKS Tips and TricksSubscripts and Superscripts • Superscript: type “ ^ ” (shift 6) • Subscript: type “ _ ” (shift -)

  6. Chapter 8Quantitative Relationships in Reactions(or Stoichiometry)

  7. Mass Composition of Compounds(Mass %) • Mass composition tells us percentage of mass of each element in compound.

  8. Stoichiometry – Calculation  of  the  quantities  of  reactants  and  products  involved  in  a  chemical  reaction

  9. S’mores

  10. 2 C2H2 + 5 O2 4 CO2 + 2 H2O Mol H2O Mole Ratio Mol C2H2 MM (H2O) MM (C2H2) grams H2O grams C2H2

  11. Limiting Reagent – Reactant that is entirely consumed when reaction goes to completion. Theoretical Yield – Max. amt of product obtained from reaction (calc. amt) Actual Yield – Amt of product that is actually obtained (measured amt)

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