Explanation:
1. N/A
2. The difference in color
3. It is making the solution less  concentrated, usually by adding more liquid.
4. You need to find the concentration of the solution before it was diluted. Add more of the  solvent to the solute as per needed. Â
5.
a 1 molar solution cannot be made by adding one mole of solute to 1 L of solvent. • Solutions of a desired molality are usually prepared by placing the appropriate amount of solute