Respuesta :

superman1987

Answer:

0.9 mol/L.

Explanation:

  • Molarity is defined as the number of moles of solute in a 1.0 L of the solution.
  • It can be expressed as: M = n / V(L)

M is the molarity of the solution (mol/L),

n is the number of moles of solute (n = 4.5 moles),

V is the volume of the solution (V = 500 ml = 0.5 L).

  • ∴ The molarity of the solution (M) = n / V = (4.5 mol) / (0.5 L) = 0.9 mol/L.

the other ans is perfect in explanation the steps to calculate...

BUT theres a single math mistake:

4.5mol/0.5L = 9M n not 0.9M

so 9M is the correct ans