a solution is made by adding 27.5 g of calcium fluoride to enough water to make 1.00L. what is the concentration (molarity) ?

The concentration will be 0.352 M

Data Given

mass of calcium fluoride = 27.5 g

molar mass of calcium fluoride = 78.07 g/mol

Volume = 1.0 L

Solution:

Molarity = given mass: molar mass) * (1 : vol (L))

Molarity = (27.5 : 78.07) * (1 : 1) = 0.352 M