The Owens College Junior Course of Practical Chemistry |
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Page 4
... manganese dioxide . Potassium chlorate when mixed with about one - fifth of its weight of manganese dioxide , gives off its oxygen at a much lower temperature than when heated alone , although the oxide itself remains quite unaltered ...
... manganese dioxide . Potassium chlorate when mixed with about one - fifth of its weight of manganese dioxide , gives off its oxygen at a much lower temperature than when heated alone , although the oxide itself remains quite unaltered ...
Page 5
... manganese dioxide is potassium chloride , and unaltered manganese dioxide . Dissolve in water the residue in the flask from the preparation of oxygen , filter from the insoluble manga- nese dioxide , and evaporate the filtrate in a ...
... manganese dioxide is potassium chloride , and unaltered manganese dioxide . Dissolve in water the residue in the flask from the preparation of oxygen , filter from the insoluble manga- nese dioxide , and evaporate the filtrate in a ...
Page 26
... manganese dioxide , sodium sulphate , manga- nese sulphate , water , and chlorine gas are produced . Thus : 2 NaCl + 2 H2SO4 + MnO2 117+ 196 + 87 = Na2SO4 + MnSO4 + 2 H2O + Cl2 . = 142 + 151 + 36 + 71 . Weigh out 30 grams of common salt ...
... manganese dioxide , sodium sulphate , manga- nese sulphate , water , and chlorine gas are produced . Thus : 2 NaCl + 2 H2SO4 + MnO2 117+ 196 + 87 = Na2SO4 + MnSO4 + 2 H2O + Cl2 . = 142 + 151 + 36 + 71 . Weigh out 30 grams of common salt ...
Page 27
... manganese dioxide is added , and the contents of the flask shaken . The flask is now provided with a conducting tube bent twice at right angles , heat is applied , and the gas col- lected by displacement like carbon dioxide ( Fig . 10 ) ...
... manganese dioxide is added , and the contents of the flask shaken . The flask is now provided with a conducting tube bent twice at right angles , heat is applied , and the gas col- lected by displacement like carbon dioxide ( Fig . 10 ) ...
Page 32
... manganese dioxide ; iodine , potassium sulphate , manganese sulphate , and water are produced . Thus : 2KI + MnO2 + 2H2SO4 = I2 + K2SO + MnSO4 + 2H2O 3322+ 87+ 196 = 254 + 174 ° 2 + 151 + 36 . Place in a retort ( provided with a ...
... manganese dioxide ; iodine , potassium sulphate , manganese sulphate , and water are produced . Thus : 2KI + MnO2 + 2H2SO4 = I2 + K2SO + MnSO4 + 2H2O 3322+ 87+ 196 = 254 + 174 ° 2 + 151 + 36 . Place in a retort ( provided with a ...
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Common terms and phrases
acetic acid acid solutions added AgNO3 produces alkaline ammonia ammonium antimony aqua regia arsenic BaCl BaCl2 barium beaker black precipitate blow-pipe blue coloration boiling borax bromides brown CaCl2 calcium chlorate cipitate cold colour compounds copper Crown 8vo crucible crystals decomposed dilute solutions dissolved drop evolved FeSO4 filter filtrate flask Fused glass gramme grams group reagents H₂O H₂S H₂SO hydrate hydrochloric acid hydrogen insoluble iodide iodine iron liquid litre manganese manganese dioxide mercury mixture moistened NaHO neutral solutions NH)HO NH4)2S produces NH4Cl nitric acid obtained oxalic acid oxide oxygen phosphorus platinum porcelain potassium potassium chlorate powder produces a precipitate produces a white reactions reducing flame residue salt separation silver chloride silver nitrate sodium sodium carbonate solu soluble soluble in excess soluble in HCl soluble in HNO3 strontium substance sulphate sulphide sulphuric acid Tartaric acid tion violet wash Weigh white precipitate yellow precipitate yields zinc