5. The active ingredient in one brand of antacid is magnesium oxide, Mgo (Molecular
Weight = 40.31 g/mol). If it is dissolved in 250 mL water at a ratio of 1:10, how many
grams of MgO must be dissolved in the solution?
a. 25 g
C. 2500 g
b. 250 g
d. none of the above