10g of MgF2 are dissolved in 2.2L of water. What is the molarity of this solution?

Given :

10g of MgF₂ are dissolved in 2.2L of water.

To Find :

The molarity of this solution.

Solution :

Molar mass of MgF₂ is :

M = 24 + 19 + 19 g/mol

M = 62 g/mol

Moles in 10 g of MgF₂, n = 10/62 = 0.161 moles.

Now, we know molarity is given by :

Therefore, the molarity of solution is 0.073 M.

the answer is b & c i believe : )

thats how its supposed to be