Nell'acqua di un acquario da 60 L sono disciolti 480 mg di ossigeno . Qual è la concentrazione dell'ossigeno disciolto?

The given question is :

480 mg of oxygen is dissolved in the water of a 60 L aquarium. What is the concentration of dissolved oxygen?

Given:

Mass of oxygen = 48 mg

48 mg of oxygen is dissolved in the water of a 60 L aquarium

To find,

The concentration of dissolved oxygen.

Solution,

concentration of dissolved oxygen = (mass of water/mass of solution)×100

48 mg = 0.000048 L

So, this is the required solution.

samuel de champlain. in 1608, king henry iv sponsored pierre dugua, sieur de mons and samuel de champlain as founders of the city of quebec with 28 men. this was the second permanent french settlement in the colony of canada.

it's c. elements are placed in rows based on how may valencies electrons have.