1. Convert grams to moles:
* Find the molar mass of iron chloride (FeCl₃):
* Fe: 55.845 g/mol
* Cl: 35.453 g/mol
* FeCl₃: 55.845 + (35.453 x 3) = 162.204 g/mol
* Divide the mass of iron chloride by its molar mass:
* 200 g / 162.204 g/mol = 1.233 moles
2. Convert ml to liters:
* Divide the volume in ml by 1000:
* 450 ml / 1000 ml/L = 0.45 L
3. Calculate the concentration (Molarity):
* Molarity (M) is defined as moles of solute per liter of solution:
* M = moles of solute / liters of solution
* M = 1.233 moles / 0.45 L = 2.74 M
Therefore, the concentration of the iron chloride solution is 2.74 M (molar).
