Answer:
0.1724 M is the concentration of magnesium ions in this solution.
Explanation:
Mass of magnesium hydroxide gas = 10.00 g
Molar mass of magnesium hydroxide = 58 g/mol
Moles of magnesium hydroxide = [tex]\frac{10.00 g}{58 g/mol}=0.1724 mol[/tex]
Volume of the solution = V = 1.00 L
Molarity or concentration of the magnesium hydroxide:M
[tex]M=\frac{\text{Moles of solute}}{\text{Volume of solution in L}}[/tex]
[tex]M=\frac{0.1724 mol}{1.00 L}=0.1724 M[/tex]
1 mole of magnesium hydroxide contains 1 mole of magnesium ion.Then 0.1724 M of magnesium hydroxide will have :
[tex][Mg^{2+}]=1\times 0.1724 M=0.1724 M[/tex]
0.1724 M is the concentration of magnesium ions in this solution.
