1. Determine the salt concentration in a saturated solution:

* A saturated solution means the maximum amount of salt has dissolved in the water.

* We know 100 ml of water can dissolve 36 grams of salt.

2. Calculate the salt needed for 25 ml:

* Set up a proportion: (36 grams / 100 ml) = (x grams / 25 ml)

* Solve for x: x = (36 grams * 25 ml) / 100 ml = 9 grams

3. Determine the amount to add:

* Since we want a saturated solution, we need 9 grams of salt in 25 ml of water.

* You would need to add 9 grams of salt to the 25 ml of water to reach saturation.