How do you figure out the grams of this?

When aqueous solutions of magnesium chloride and sodium hydroxide are mixed, magnesium hydroxide (molar m 58.33 g/mol) precipitates out. Suppose that 100.0 mL of a 0.120 M solution of magnesium chloride is mixed with 100.0 mL of 0.210 M sodium hydroxide. How many grams of magnesium hydroxide will be formed?