More Big Ideas stoichiometry

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More Big Ideas (stoichiometry)

• Atom (mass) conservation.
• Individual coefficients in a balanced equation
  are meaningless.

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Dissolving of an Ionic Compound
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NaCl Dissolves
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HCl is Completely Ionized
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An Aqueous Solution of Sodium Hydroxide
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Acetic Acid (HC2H3O2)
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Electrical Conductivity of Aqueous Solutions
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Question 1

• You mix a 3.00 M sugar solution with a 5.00 M
  sugar solution. Which of the following best
  describes the concentration of the new solution?
• a) Less than 3.00 M.
• b) Between 3.00 M and 5.00 M.
• c) 8.00 M.
• d) Greater than 8.00 M.
• e) The answer could be more than one of the above
  choices depending on the volumes of the original
  solutions.

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KCl(aq) and AgNO3(aq) form AgCl (s)
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Question 2

• When lead(II) nitrate and potassium iodide are
  mixed, which are the possible products?
• 1. PbI
• 2. PbI2
• 3. K(NO3)2
• 4. KNO3
• a) 1 3 b) 1 4 c) 2 4 d) 2 3