Chemistry lab question. the lab is about the separation of mixtures using evaporation and filtration. 1. compare the size the particles of refined sand with the size of particles of the dissolved salt in the mixture? 2. compare the size of the pores in the filter paper, to the sizes of the sand particles and salt particles?

For the first question, salt is soluble while sand is insoluble or not dissolvable in water. The salt should have vanished or melted, but the sand stayed noticeable or visible, making a dark brown solution probably with some sand particles caught on the walls of the container when the boiling water was put in to the mixture of salt and sand. The solubility of a chemical can be disturbed by temperature, and in the case of salt in water, the hot temperature of the boiling water enhanced the salt's capability to melt in it.

For the second question, the melted or dissolved salt should have easily made its way through the filter paper and into the second container, while the undissolved and muddy sand particles is caught on the filter paper.

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