An experiment to determine the concentration of the Descaling solution, Methanoic Acid.

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An experiment to determine the concentration of the Descaling solution, Methanoic Acid.

The Problem

Find the concentration of methanoic acid, using methanoic acid solution and titrating them.

Apparatus

Burette

Volumetric Pipette

Beakers

Conical Flasks

Volumetric Flasks

Funnel

Clamp Stand

White Tile

Method

Measure out 25cm3 of Methanoic acid of known concentration for the titration using the volumetric pipette.

Assemble apparatus (as shown in diagram) after collecting goggles and lab coat for safety.

Move your apparatus to eve level (i.e. to a stool) and pour the Methanoic acid in till the meniscus rests on the 0 level exactly so that your results can be measured accurately from the same marker every time.

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Move the apparatus back onto the table, and measure 25cm3 of methanoic acid accurately with the volumetric pipette (ensuring that it is clean, washed with distilled water then the solution you are using) and pour it into a conical flask.

Add a few drops of phenolphthalein indicator which will make the solution pink and you can tell when the end point is near so make it more accurate.

Turn on the tap from the burette and let the Methanoic acid run into the pink solution. Shake the flask constantly to evenly distribute the Methanoic acid in the solution ...

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