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QUESTION
A sample of 0.0512 mol of iron(III) chloride, FeCl3, was dissolved in water to give 25.0 mL of solution. What is the molarity of the solution?
##"2.05 moles/L"##
is defined as
##"molarity" = "No. of Moles"/"volume of solution in liters"##
In your case, you have
##"molarity" = ("0.0512 moles of FeCl"""_3)/"0.025L of solution" = "2.05 moles/L"##
