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# Help Zone

### Student Question

Secondary III • 1yr.

How do we compare different solutions according to their concentration?

Science

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## Explanations (1)

• Explanation from Alloprof

Explanation from Alloprof

This Explanation was submitted by a member of the Alloprof team.

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Team Alloprof • 1yr.

Thank you for your question!

In order to compare different solutions according to their concentration, they must be put on an equal footing. That is to say, they need to be converted to common unit.

Subsequently, the involved quantities can be directly compared.

For example, if there was a concentration value in g / L, another concentration value in % m / V, and a concentration in ppm, two of these quantities would have to be converted into one of the three units.

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