Titration

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# Titration - PowerPoint PPT Presentation

Titration. A review. The First Step. Balance the Reaction Equation HCl + NaOH  ?? Acid and Base form Salt and Water HCl + NaOH  H 2 O + NaCl Neutralize the Salt Balance the Equation. Example:. Sulfurous Acid and Iron (III) hydroxide H for Acid, SO 3 2- for Sulfurous

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## PowerPoint Slideshow about ' Titration' - chen

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Presentation Transcript

### Titration

A review

The First Step
• Balance the Reaction Equation
• HCl + NaOH  ??
• Acid and Base form Salt and Water
• HCl + NaOH  H2O + NaCl
• Neutralize the Salt
• Balance the Equation
Example:
• Sulfurous Acid and Iron (III) hydroxide
• H for Acid, SO32- for Sulfurous
• Fe 3+ for iron and OH- for hydroxide
• H2SO3 + Fe(OH)3
Balanced
• Form H2O and Fe and SO3
• Fe 3+ andSO32-
• Fe2(SO3)3
• H2SO3 + Fe(OH)3  H2O + Fe2(SO3)3
• 3H2SO3 + 2Fe(OH)3 
• 6 H2O + Fe2(SO3)3
Find the molar ratio
• To find the molar ratio you need to look at your balanced equation.
Calculating Titration Problems
• Volume of standard solution times
• Molarity of the Standard solution
• Gives you moles of Standard.
• VxM=moles standard
Calculations continued
• Moles Standard times molar ratio
• Gives moles of unknown
• Moles standard x ratio of unknown
• ratio of standard
Calculations
• Moles of Unknown divided by volume of sample titrated gives Molarity of Unknown.
• Moles sample/volume of sample=M
Still need a balanced equation!!
• ?MaVa=?MbVb
• How many H’s?
• How many OH’s?
• #H’sMaVa=#OH’sMbVb
Try one!
• If you Titrate 10 ml of aluminum hydroxide with 16.3 ml of 0.1 M Sulfuric Acid, What is the concentration of the base?