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Copper sulphate solutions
This task is about concentration of copper sulphate solutions.
Question
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Four solutions of copper sulphate were made by dissolving blue copper sulfate crystals in water.
a) Put the beakers in order from darkest blue to lightest blue solution.
Four solutions of copper sulphate were made by dissolving blue copper sulfate crystals in water.
a) Put the beakers in order from darkest blue to lightest blue solution.
Question
2
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b) Solutions A and B were then mixed together.
How much water and crystals should be added to make the same colour and volume as D?
b) Solutions A and B were then mixed together.
How much water and crystals should be added to make the same colour and volume as D?
i) Water
ml
ii) Crystals
g
Question
c) What is the best definition for the term "concentration", in this context.
Choose one
the amount of substance in a given volume of solution
the stage at which no more of a substance can be dissolved into a solution
a mixture of crystals and water
paying attention to the details