in advance and boiled, then dissolved in 500mL of water with high purity nitrogen for a long time, an appropriate amount of ammonium chloride is added, heated to boiling, hydrogen sulfide is introduced while a slight excess of concentrated ammonia water is added to precipitate manganese hydroxide...
sodium hydroxide and copper (II) sulfate 2. iron (III) bromide and potassium sulfide 3. potassium bromide and lead (II) nitrate The solubility of ammonium bromide in water at 20 degrees Celsius is 75.5 g / 100 g of water. Its solubility at 50 degrees Celsius is...