You are given two beakers A and B and China rose as an indicator. Beaker A has 20ml of magnesium hydroxIde and 100ml of water. and beaker B has 50ml of magnesium hydroxide and 100ml of water. When these solutions are tested with China rose,

a. The darkness of the green color produced by the indicator were not same in each of the

solutions. What could be the possible reasons?

The darkness of the green color produced in the beakers is different because the concentration of magnesium hydroxide is different in both beakers.

Explanation:

The reason why the flasks have different color intensity is related to the concentration of magnesium hydroxide.

An indicator usually changes color because its conformation changes according to the pH. The higher the base level, the pH is higher. Then the color shift will be more intense.

Beaker A has 20 ml of magnesium hydroxide and 100 ml of water and beaker B has 50ml of magnesium hydroxide and 100ml of water.

Beaker A is more diluted than beaker B.

Therefore, beaker B is greener than beaker A.