What other solutes are often added to a cup of coffee?
A solute is something which is dissolved in a solvent, which
creates a solution (sounds confusing, but spending a little time
remembering this can help a lot in the long run!)
So, a cup of coffee is a solution made up of instant coffee
powder and water. The water is the solvent, and the coffee powder
is the solute. Anything added to the water, such as sugar, is also
a solute, as it is dissolved in the solvent.
This might sound confusing, but basically the water is the
solvent, and anything added to it which disolves is a solute!
Hope this helps!