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American Chemical Society
Middle School Chemistry: Density of Water
Learners discover the concept that density is a characteristic property of water by measuring the volume and mass of water and calculating its density.
Chemistry Collective
Chem Collective: Creating a Stock Solution
In this activity, students use the virtual lab to create dilute solutions from a concentrated stock solution of acids or bases. They must first calculate the correct volumes of concentrated acid solution and water to mix together to...