Question

What is the concentration (molarity) of a solution created by dissolving 81.1 grams of Mg3P2 to create a 2.5 solution?

Answer 1

Answer:

The concentration of Mg3P2 solution = 0.24mol/L

Explanation:

Mass = 81.1g

Volume = 2.5L

Concentration (C) of a solution = $\frac{Moles (n)}{Volume (V)}$

but moles = $\frac{mass}{Molar mass}$       and      Molar mass of Mg3P2 = 134.88g/mol

Moles = $\frac{81.1g}{134.88g/mol}$

          = 0.60mol

hence the concentration can be calculated by;

C =  $\frac{0.60mol}{2.5L}$

  = 0.24mol/L or 0.24M