What is the molarity of a solution containing 5. 035 grams of FeCl3 in enough water to make 500 ml of solution?

1 answer

To calculate the molarity of the solution, we need to know the number of moles of FeCl3 and the volume of the solution in liters.

Step 1: Calculate the number of moles of FeCl3.

molar mass of FeCl3 = 162.2 g/mol

moles of FeCl3 = mass / molar mass

moles of FeCl3 = 5.035 g / 162.2 g/mol

moles of FeCl3 = 0.031 moles

Step 2: Convert the volume to liters.

500 ml = 0.5 liters

Step 3: Calculate the molarity.

molarity = moles / volume (in liters)

molarity = 0.031 moles / 0.5 liters

molarity = 0.062 M

Therefore, the molarity of the solution containing 5.035 grams of FeCl3 in enough water to make 500 ml of solution is 0.062 M.