Chemistry Practical Plan

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Chemistry Practical Plan.

Aim:

The aim of this experiment is to identify the chemicals below in the solutions A to F using suitable reactants, and also carry out a titration procedure to determine the concentration of aqueous nitric acid.

*Aqueous calcium hydroxide

*Ethanoic acid

*Nitric acid

*Aqueous Potassium Bromide

*Aqueous Sodium Chloride                                                

Safety:

Wear goggles to avoid chemicals getting into eyes.

Immediately clean up spills that might occur.

Use gloves if handling strong chemicals.

Aqueous sodium hydroxide:

Apparatus:

Solutions A to E

Calcium Carbonate

Bunsen burner

Stand and Clamp

Test tube

Conical Flask

Stopper with tube.

Diagram:

Method:

I will set up the apparatus as shown as above. When heating calcium carbonate carbon dioxide gas is released; this gas will go down the tube to the solutions. If the solution is calcium hydroxide, the carbon dioxide will react with it leaving a milky white precipitate.                

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Equations: CaOH(aq)  + CO(g) CaCO(aq) + H0(l)                Word Count: 134

Ethanoic acid:

Apparatus:

Solutions A to E

Ethanol

Concentrated Sulphuric acid

Bunsen Burner

Stand

Water supply

Round bottom flask

Condenser

Tubes

Diagram:

Method:

I will set up the apparatus as shown above. Warming ethanol with ethanoic acid, and a strong acid catalyst (concentrated sulphuric acid), it forms an ester. The O-H bond in ethanol is broken in the esterification reaction. Equation: CHCOOH(aq) + CHOH(aq)  CHCOOCHCH(aq) + HO(l)

Nitric acid:

Apparatus:

Solutions A to E

Magnesium nitrate

Bunsen burner

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