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Acids Lesson 17 Titrations

Acids Lesson 17 Titrations. A standard solution is a solution of known molarity . A primary standard is a solution that is made by weighing a pure solid and diluting in a volumetric flask.

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Acids Lesson 17 Titrations

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  1. Acids Lesson 17 Titrations

  2. A standard solution is a solution of known molarity. A primary standard is a solution that is made by weighing a pure solid and diluting in a volumetric flask. A secondary standard requires a titration to calibrate its concentration. This standard was made using an acid or base with suspect purity. Primary standards are made from pure solids as gases and liquids are difficult to work with. Not suitable Example Reason Arrhenius basesNaOH Hydroscopic Strong acids HCl volatile liquids or gases Suitable solid bronsted bases Na2CO3 pure solid solid weak acids H2C2O4 pure solid

  3. Primary Standard Secondary Standard NaOH(s) Na2CO3(s) H2SO4(l) H2C2O4(s) HCl(g) KC6H5COO(s) C6H5COOH(s) NH3(g)

  4. Primary Standard Secondary Standard NaOH(s) Na2CO3(s) H2SO4(l) H2C2O4(s) HCl(g) KC6H5COO(s) C6H5COOH(s) NH3(g)

  5. Primary Standard Secondary Standard H2SO4(l) NaOH(s) Na2CO3(s) H2C2O4(s) HCl(g) KC6H5COO(s) C6H5COOH(s) NH3(g)

  6. Primary Standard Secondary Standard H2SO4(l) NaOH(s) Na2CO3(s) H2C2O4(s) HCl(g) KC6H5COO(s) C6H5COOH(s) NH3(g)

  7. Primary Standard Secondary Standard H2SO4(l) H2C2O4(s) NaOH(s) Na2CO3(s) HCl(g) KC6H5COO(s) C6H5COOH(s) NH3(g)

  8. Primary Standard Secondary Standard H2SO4(l) H2C2O4(s) NaOH(s) Na2CO3(s) HCl(g) KC6H5COO(s) C6H5COOH(s) NH3(g)

  9. Primary Standard Secondary Standard H2SO4(l) H2C2O4(s) NH3(g) NaOH(s) Na2CO3(s) HCl(g) KC6H5COO(s) C6H5COOH(s)

  10. Primary Standard Secondary Standard H2SO4(l) H2C2O4(s) NH3(g) NaOH(s) Na2CO3(s) HCl(g) KC6H5COO(s) C6H5COOH(s)

  11. Primary Standard Secondary Standard H2SO4(l) H2C2O4(s) NH3(g) Na2CO3(s) NaOH(s) HCl(g) KC6H5COO(s) C6H5COOH(s)

  12. Primary Standard Secondary Standard H2SO4(l) H2C2O4(s) NH3(g) Na2CO3(s) NaOH(s) HCl(g) KC6H5COO(s) C6H5COOH(s)

  13. Primary Standard Secondary Standard H2SO4(l) H2C2O4(s) NH3(g) Na2CO3(s) NaOH(s) HCl(g) KC6H5COO(s) C6H5COOH(s)

  14. Primary Standard Secondary Standard H2SO4(l) H2C2O4(s) NH3(g) Na2CO3(s) NaOH(s) HCl(g) KC6H5COO(s) C6H5COOH(s)

  15. Primary Standard Secondary Standard H2SO4(l) H2C2O4(s) NH3(g) Na2CO3(s) NaOH(s) HCl(g) KC6H5COO(s) C6H5COOH(s)

  16. Primary Standard Secondary Standard H2SO4(l) H2C2O4(s) NH3(g) Na2CO3(s) NaOH(s) HCl(g) KC6H5COO(s) C6H5COOH(s)

  17. Primary Standard Secondary Standard H2SO4(l) H2C2O4(s) NH3(g) Na2CO3(s) C6H5COOH(s) NaOH(s) HCl(g) KC6H5COO(s)

  18. Primary Standard Secondary Standard H2SO4(l) H2C2O4(s) NH3(g) Na2CO3(s) C6H5COOH(s) NaOH(s) HCl(g) KC6H5COO(s)

  19. Primary Standard Secondary Standard H2SO4(l) H2C2O4(s) NH3(g) Na2CO3(s) C6H5COOH(s) NaOH(s) KC6H5COO(s) HCl(g)

  20. Preparing a Primary Standard 1. Calculate the mass of H2C2O4.2H2O require to prepare 100.0 mL of 0.100 M standard solution. 0.1000 L

  21. Preparing a Primary Standard 1. Calculate the mass of H2C2O4.2H2O require to prepare 100.0 mL of 0.100 M standard solution. 0.1000 L x 0.100 mole 1 L

  22. Preparing a Primary Standard 1. Calculate the mass of H2C2O4.2H2O require to prepare 100.0 mL of 0.100 M standard solution. 0.1000 L x 0.100 mole x 126 g 1 L 1 mole

  23. Preparing a Primary Standard 1. Calculate the mass of H2C2O4.2H2O require to prepare 100.0 mL of 0.100 M standard solution. 0.1000 L x 0.100 mole x 126 g = 1.26 g 1 L 1 mole

  24. Titration Calculation 2. 6.50 mL of 0.100 M H2C2O4 is required to neutralize 10.0 mL of KOH solution in a titration. Calculate the base concentration. H2C2O4 + 2NaOH Na2C2O4 + 2H2O 0.00650 L 0.0100 L 0.100 M ? M [KOH] = 0.00650 L H2C2O4

  25. Titration Calculation 2. 6.50 mL of 0.100 M H2C2O4 is required to neutralize 10.0 mL of KOH solution in a titration. Calculate the base concentration. H2C2O4 + 2NaOH Na2C2O4 + 2H2O 0.00650 L 0.0100 L 0.100 M ? M [KOH] = 0.00650 L H2C2O4 x 0.100 mole 1 L = 0.130 M Finish and hand in your report. Check your sig figs- should be 3. Make sure your work is perfect. Does all of your data have units? Make sure your unknown letter is recorded. Put away 10 pieces of glassware from the side of the room!

  26. Titration Calculation 2. 6.50 mL of 0.100 M H2C2O4 is required to neutralize 10.0 mL of KOH solution in a titration. Calculate the base concentration. H2C2O4 + 2NaOH Na2C2O4 + 2H2O 0.00650 L 0.0100 L 0.100 M ? M [KOH] = 0.00650 L H2C2O4 x 0.100 mole x 2 mole KOH 1 L 1 mole H2C2O4 = 0.130 M Finish and hand in your report. Check your sig figs- should be 3. Make sure your work is perfect. Does all of your data have units? Make sure your unknown letter is recorded. Put away 10 pieces of glassware from the side of the room!

  27. Titration Calculation 2. 6.50 mL of 0.100 M H2C2O4 is required to neutralize 10.0 mL of KOH solution in a titration. Calculate the base concentration. H2C2O4 + 2NaOH Na2C2O4 + 2H2O 0.00650 L 0.0100 L 0.100 M ? M [KOH] = 0.00650 L H2C2O4 x 0.100 mole x 2 mole KOH 1 L 1 mole H2C2O4 0.0100 L = 0.130 M Finish and hand in your report. Check your sig figs- should be 3. Make sure your work is perfect. Does all of your data have units? Make sure your unknown letter is recorded. Put away 10 pieces of glassware from the side of the room!

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