What is the solute and solvent in tap water?

Answer 1

The solvent is the water (unless you have grossly contaminated water supplies). Solutes will depend on the source of the water but common ones are calcium and iron with a variety of cations. The solutes will have been dissolved from the soil through which the water passed and the machinery and other equipment used to pump it to you.

Answer 2

Water is the solvent,

the solute(s) vary with the location and can be anywhere from nothing (unlikely),

to metals (esp lead) from the pipes,

ANY toxin from the soils that the water comes from.

Answer 3

In tap water, water is the solvent since it is the substance that dissolves other substances, and the solute can vary depending on location but commonly includes minerals, gases, and sometimes chemicals like chlorine or fluoride.