Concentration and Volume of a Liquid

For this experiment, we needed to add Copper(II) Chloride (CuCl2) to water to study the concentration and volume of a liquid. Me and Nick were partners for this one.

First of all, we had to calculate how many grams of Copper(II) Chloride to add to 50mL of water for a Molarity of 0.200.

The first step was to fill the volumetric flask half way with water.

Next, we weighed out the amount of grams (1.71g) necessary to achieve the correct Molarity.

We then poured the Copper(II) Chloride into the half full volumetric flask.

This changed the colour of the liquid to a light green.

We then filled the flask the rest of the way, but there was still undissolved crystals in the bottom of the flask. You can see the colour also became more turquoise with more water was added.

Finally, we swirled the solution around to fully combine the water and Copper(II) Chloride.

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