what is the solute and solvent in a solution made from 15 mL of oxygen and 5 mL of helium?
Most would label helium as the solute, but you are dealing with miscible substances. Look up the term miscible.
The use of the terms solute and solvent in miscible combination is not useful, generally. I am not a fan of using these terms in miscible gaseous solutions
Nice
To determine the solute and solvent in a solution, we need to understand their definitions. The solute is the substance that gets dissolved in the solution, and the solvent is the substance in which the solute gets dissolved.
In the given solution, we have 15 mL of oxygen and 5 mL of helium. To decide which one is the solute and which one is the solvent, we can consider the properties of the substances.
Oxygen and helium are both gases, and in a solution, the gas that is present in higher concentration is often considered the solvent. In this case, since we have more oxygen (15 mL) compared to helium (5 mL), we can consider oxygen as the solvent and helium as the solute.
Therefore, in the given solution, oxygen is the solvent, and helium is the solute.