2.21: Practical: Investigate Reactions Between Dilute Hydrochloric and Sulfuric Acids and Metals (e.g Magnesium, Zinc and Iron)

REACTIONS BETWEEN DILUTE HYDROCHLORIC ACID AND SULFURIC ACID WITH METALS:

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Acids react with most Metals to produce Salt and Hydrogen Gas:

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Metal    +   Hydrochloric  Acid     →     Metal Chloride    +    Hydrogen   Metal    +        Sulfuric  Acid         →     Metal Sulfate       +    Hydrogen

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PRACTICAL:

INVESTIGATING REACTIONS OF METALS WITH ACIDS
Diagram showing the Process of Investigating the Reaction between Metals and Acids
METHOD: Add Acid into a conical flask Add Metal into conical flask Observe reaction and the rate in which bubbles are produced
RESULTS:
METAL	OBSERVATIONS	EQUATION
MAGNESIUM	Reacts quickly Bubbles of Gas Magnesium disappears Exothermic Colourless solution formed	HCL : Mg + 2HCl → MgCl2 + H2
		H2SO4 : Mg + H2SO4 → MgSO4 + H2
ZINC	Reacts more slowly Bubbles of Gas Zinc disappears Colourless solution formed	HCL : Zn + 2HCl → ZnCl2 + H2
		H2SO4 : Zn + H2SO4 → ZnSO4 + H2
IRON	Reacts more slowly than zinc Bubbles of Gas Iron disappears Pale green solution formed	HCL : Fe + 2HCl → FeCl2 + H2
		H2SO4 : Fe + H2SO4 → FeSO4 + H2