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.
2 (g) A solution of nickel(II) bromide is added to a solution of potassium hydroxide. (i) Balanced equation: Ni 2+ + 2 OHâ â Ni(OH)2 (ii) Identify the spectator ions in the reaction mixture. Br - (aq) and K + (aq) are spectator ions.(h) Hexane is combusted in air. (g) A solution of nickel(II) bromide is added to a solution of potassium hydroxide. (i) Balanced equation: Ni 2+ + 2 OHâ â Ni(OH)2 (ii) Identify the spectator ions in the reaction mixture. Br - (aq) and K + (aq) are spectator ions. (h) Hexane is combusted in air.