Revision on acid base and salt = with answers
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Basic chemistry concept
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Revision on acid base and salt = with answers
- 4. SALT PREPARATION METHODS SOLUBLE SALTS ( must start with ) TITRATION METHOD ( reaction between and ) SOLID AND HOT ACID METHOD For soluble salts of salts For all soluble salts
- 5. SALT PREPARATION METHODS INSOLUBLE SALT ( the reactants must be in form) METHOD
- 6. Excess copper (II) oxide powder Acid xxxxxxxxxxxx Heat
- 8. Write the chemical equation for the preparation of copper (II) sulphate. State the reason why copper (II) oxide powder is added until in excess.
- 9. Describe how to obtain pure crystals from solution of copper (II) sulphate in the beaker above.
- 10. 0.1 mol of copper (II) sulphate is produced from the reaction between acid and excess copper (II) oxide. Calculate the mass of copper (II) sulphate formed.
- 11. Describe chemical tests to verify the present of cation in copper (II) sulphate solution.
- 12. Describe chemical tests to verify the present of anion in copper (II) sulphate solution.
- 13. Question 3 Preparation of salt Name of method: i.Titration 0.1 mol dm-3 hydrochloric acid method of preparation of salt Experiment 1 25.0 cm3 of 0.2 mol dm-3 sodium hydroxide + phenolphthalein