Unit: Acids, Bases, and Solutions

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Unit Acids, Bases, and Solutions
Day 1 - Notes

• Acids and Bases Review of naming and
  Characteristics

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After today you will be able to

• Define an acid and base according to the
  Arrhenius definition
• Review the correct way to write the names and
  formulas for acids and bases
• Describe and list properties that pertain to
  acids and bases

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• There are three different types of definitions
  for acids and bases, but for our purposes we will
  only work with one Arrhenius.

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Acids

• An Arrhenius acid is an ionic compound that has
  the H ion as its cation.
• Acids have a sour taste
• (Ex citric acid)
• Acids will cause indicators to change colors

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• Indicators Are substances that change color
  based on pH.

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Acids

• Turn litmus paper pink or red
• The pH of acids is less than 7
• Acids will react with metals in a single
  replacement reaction called corrosion.
• Acids will react with bases in a double
  replacement reaction called neutralization.

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Bases

• An Arrhenius base is an ionic compound that has
  the OH- ion as its anion.
• Bases have a bitter taste
• Bases are slippery (Ex soap)
• Bases will cause indicators to change colors

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Bases

• Bases change litmus paper blue.
• The pH of bases is greater than 7.
• Bases will react with acids (neutralization)

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Review Naming and Formula Writing for Bases

• Use typical rules for naming ionic compounds
• NaOH ___________________
• Mg(OH)2 ___________________
• Aluminum Hydroxide ________

Sodium hydroxide
Magnesium hydroxide
Al(OH)3
Al3 (OH)-1
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Review Naming and Formula Writing for Acids

• If the anion ends in
• ide then, ___________________
• ate then, ___________________
• ite then, ____________________

hydro____ic acid
____ic acid
____ous acid
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Review Naming and Formula Writing for Acids

• For acids, look at the anion ending!
• H3PO3 ___________________
• HBr ___________________
• Carbonic acid ______________

Remember H1 is always the cation for acids!
Phosphorous acid
Hydrobromic acid
H2CO3
H1 (CO3)-2
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• Questions?Begin WS3