a magnesium halide salt has the formula MgX2. A 0.593g sample of MgX2 was dissolved in 100mL of deionized water, followed by the addition of excess NaOH. The precipitate of Mg (OH)2 was filtered, washed, and dried. The precipitate was found to have a mass of 0.187g. what is the percent by mass of Mg in the original unknown compound ?

Magnesium is the limiting reactant in this experiment. calculate the theoretical yield of mgo for each trial. trial 1: trial 2: data mass of empty crucible with lid trial 1: 26.688 trial 2: 26.681 mass of mg metal, crucible, and lid trial 1: 26.994 trial: 2 26.985 mass of mgo, crucible, and lid trial 1: 27.188 trial 2: 27.180