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NaCl Find LE f

Welcome and thanks for visiting. Module 3 Practical: Titration Questions 2002-7. NaCl Find LE f. F Scullion. JustChemy.Com. Introduction. Titration Graphs. Strong Alkali + Strong Acid Weak Alkali + Strong Acic. pH. pH.

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NaCl Find LE f

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  1. Welcome and thanks for visiting. Module 3 Practical: Titration Questions 2002-7 NaClFind LEf F Scullion. JustChemy.Com

  2. Introduction

  3. Titration Graphs. Strong Alkali + Strong Acid Weak Alkali + Strong Acic pH pH ------------------------------------------------------------------------------------------------------------------ Strong Alkali + Weak Acid Weak Alkali + Weak Acid pH pH

  4. Phenolphthalein in alkali

  5. Calculate the concentration of the potassium hydroxide solution  (i) in mol/dm3 (mol per litre)  (relative atomic masses: H=1; O=16; K=39) KOH + HNO3 = KNO3 + H2O Mmol/dm3 ? 0.1 V 25.0 22.5 Mol 1 1

  6. 2004 Practical 1

  7. 2004 Practical 1

  8. 1 mole of KIO3 make 3 mole of I2 This 3 mol of I2 requires (3x2) = 6 mol Na2S2O3 So 1 mole of KIO3 = 6 mole Na2S2O3

  9. Thio Iodine – Thiosulphate Titration

  10. 6 6

  11. 2004/P2

  12. 6 6

  13. 2005/P1

  14. Weak Acid + Strong Alkali Phenolphthalein changes colour in range 8 - 10

  15. 2005/P2

  16. Methyl Orange turns colour in range 3 – 4.5 Sodium carbonate

  17. Red to Yellow

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