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Neutralization Reaction

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Presentation on theme: "Neutralization Reaction"— Presentation transcript:

1 Neutralization Reaction
Base and acid react to produce a salt and water

2 Titration A lab technique where a neutralization reaction is preformed to determine the concentration of an unknown.

3 The anatomy of a titration:
Standard solution - solution of known concentration. End Point - the point at which neutralization is achieved Indicator - chemical that changes color with a change in pH. We will be using phenolphthalein. Clear in an acid pink in a base You want a light pink Buret - Measurement device


5 Titration Calculations 4 steps
Start with the balanced equation Find the moles in the standard solution Set up ratio to find moles of unknown Find molarity(mol/L) or volume

6 Titration Calculations example problem
A ml solution of H2SO4 is neutralized by ml of 1.0 M NaOH. What is the concentration of H2SO4? H2SO NaOH --> Na2SO H2O L NaOH 1.0 mol NaOH 1 mol H2SO4 1 L NaOH mol NaOH L H2SO4 = 0.35 mol/L H2SO4

7 Titration Problems your turn
What is the molarity of phosphoric acid if 15.0 mL of the solution is neutralized by 8.5 mL of 0.15 M NaOH? H3PO NaOH --> Na3PO H2O L NaOH mol NaOH 1 mol H3PO4 1 L NaOH mol NaOH L H3PO4 = mol/L H3PO4

8 Titration Problems 1 more your turn
How many milliliters of 0.45 M hydrochloric acid must be added to 25.0 mL of 0.15 M NaOH? HCl + NaOH --> NaCl + H2O L NaOH mol NaOH 1 mol HCl L HCl mL 1 L NaOH mol NaOH mol HCl 1L = 8.3 mL HCl

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