Question

What is the concentration of a solution with a volume of 2.5 liters containing 600 grams of calcium phosphate?​

Answer 1

Answer:

1.12M

Explanation:

Given parameters:

Volume of solution  = 2.5L

Mass of Calcium phosphate  = 600g

Unknown:

Concentration  = ?

Solution:

Concentration is the number of moles of solute in a particular solution.

Now, we find the number of moles of the calcium phosphate from the given mass;

        Formula of calcium phosphate  = Ca₃PO₄

         molar mass = 3(40) + 31 + 4(16) = 215g/mol  

Number of moles of  Ca₃PO₄  = $\frac{600}{215}$   = 2.79moles

   Now;

  Concentration  = $\frac{Number of moles }{volume }$  

 Concentration  = $\frac{2.79}{2.5}$   = 1.12M