To many teachers (and students), assessment simply means giving students tests and assigning them grades. This conception of assessment is not only limited, but also limiting (see section below on Assessment versus grading).
Molecular weight of Nickel(II) Chloride Hexahydrate. Molar mass of NiCl2.6H2O = 237.69108 g/mol. Convert grams Nickel(II) Chloride Hexahydrate to moles or moles Nickel(II) Chloride Hexahydrate to grams. Molecular weight calculation: 58.6934 + 35.453*2 + 6*(1.00794*2 + 15.9994) Note that all formulas are case-sensitive.
Usually, magnesium chloride hexahydrate is used for the reaction step. The concentration of the magnesium chloride hexahydrate in the reaction mixture is not limited to a special range. However, it is preferable that the concentration of magnesium chloride hexahydrate be in a range of from 2 to 20% by weight.owever, after the recovery of the precipitated magnesium chloride hexammoniate, the remaining aqueous solution containing unreacted magnesium chloride, ammonium salt and ammonia, and having a low temperature, is discharged from the reaction system without recovering it.