How many grams of solid magnesium chloride, mgcl2, are needed to make 250 ml of 0. 50 m solution?.

The answer is 12g.The mass of magnesium chloride produced can be calculated from the mass of magnesium hydroxide. The mass of magnesium chloride that can be produced is 17.1 grams. The mass given is equal to the number of moles divided by the mass given.Solid magnesium is stated in the question because the required mass is 0.0149 grams. The amount of MgCl2 that needs to be added can be calculated using the formula C1V1 = C2V2. . As Raditijo mentioned, lowering the MgCl2 concentration in the buffer is much more troublesome. Use its molecular weight to convert the amount of each excess reactant to grams.Learn more about Magnesium chloride here:-https://brainly.com/question/26227142#SPJ4