Question

A chemist prepares a solution of fluoride (MgF2) by measuring out 0.0191 ųmol of magnesium fluoride into a 400. mL volumetric flask and filling the flask to the mark with water. Calculate the concentration in mol/L of the chemist's magnesium fluoride solution.

Answer 1

The answer to your question is: 0.05 M

Step-by-step explanation:

I'm not sure about the units umol, I think is units mol.

Data

MgF2 = 0.0191 mol

Volume = 400 ml

Molarity = moles / volume

Molarity = 0.0191 / 0.4 l

Molarity = 0.048 ≈ 0.05 M