Dddggggggf1000 Dddggggggf1000 16-05-2018 Chemistry contestada If you start with 4.0 grams of sodium flouride (NaF), how many grams of magnesium flouride (MgF2) will be produced? The molar mass of NaF is 42g/mole and the molar mass of MgF2 is 62g/mole.