Calculate the volume in liters of a 6.7 × 10-4 mmol/L magnesium fluoride solution that contains 700. mg of magnesium fluoride (MgF2) Be sure your answer

has the correct number of significant digits.

First, we need to convert the mass of magnesium fluoride to moles:

700 mg MgF2 * (1 g / 1000 mg) * (1 mmol / 62.301 g) = 0.0112 mmol

Next, we can use the given concentration to calculate the volume:

0.0112 mmol / (6.7 × 10^-4 mmol/L) = 16.7 L

Therefore, the volume of the solution is 16.7 Liters.