What is the difference between aqueous and non-aqueous solution?

To make a saturated solution, 36 g of sodium chloride is dissolved in 100g of water at 293 K. Find its concentration at this temperature.

Differentiate between saturated and unsaturated solution.

What is meant by the concentration of a solution? Explain by giving an example.

List the points of differences between homogeneous and heterogeneous mixtures.