Question

What is the molarity of a solution prepared 27.2 g of sodium chloride in enough water to prepare 500.0 mL of solution?

Answer 1

molarity is in units of moles per liter, so take the mass of sodium chloride and convert it into moles.\[27.2g NaCl * (\frac{1mol NaCl}{58.5g NaCl})\]
turn the 500mL volume into liters and divide moles/Liters
\[M = (\frac{mol}{L}) = ?\]