Elementary Household Chemistry: An Introductory Textbook for Students of Home EconomicsMacmillan, 1914 - 307 σελίδες |
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Σελίδα
... POWDERS XXX . SOLUTION AND EMULSIFICATION OF FATS . THE PAGE • 143 148 • 151 155 CLEANING OF FABRICS · XXXI . THE GENERAL COMPOSITION OF FOODS . XXXII . THE CARBOHYDRATES . I XXXIII . THE CARBOHYDRATES . II • XXXIV . THE PROTEINS . I ...
... POWDERS XXX . SOLUTION AND EMULSIFICATION OF FATS . THE PAGE • 143 148 • 151 155 CLEANING OF FABRICS · XXXI . THE GENERAL COMPOSITION OF FOODS . XXXII . THE CARBOHYDRATES . I XXXIII . THE CARBOHYDRATES . II • XXXIV . THE PROTEINS . I ...
Σελίδα 22
... on iron . Experiment 22. * Materials : Iron powder or fine filings . Sulphur . Carbon disulphide . Iron sulphide . Apparatus : Mortar and pestle . Magnet . Grind together in a mortar about 2 grams each of 22 IV COMPOUNDS.
... on iron . Experiment 22. * Materials : Iron powder or fine filings . Sulphur . Carbon disulphide . Iron sulphide . Apparatus : Mortar and pestle . Magnet . Grind together in a mortar about 2 grams each of 22 IV COMPOUNDS.
Σελίδα 23
... powders , comparing the results : see 66 ( a ) Pass a magnet through the powder . If both powders are attracted by the magnet , shake the magnet and whether there is in either case any evidence of a separation of the iron and sulphur ...
... powders , comparing the results : see 66 ( a ) Pass a magnet through the powder . If both powders are attracted by the magnet , shake the magnet and whether there is in either case any evidence of a separation of the iron and sulphur ...
Σελίδα 35
... powders , for instance , should be so made as to contain exactly the right quantity of soda to react with all the cream of tartar . If too much of either constituent is used , the excess will remain in the cake or biscuit , making it ...
... powders , for instance , should be so made as to contain exactly the right quantity of soda to react with all the cream of tartar . If too much of either constituent is used , the excess will remain in the cake or biscuit , making it ...
Σελίδα 36
... powder . soda should be used ? tartar 90 per cent pure are to be How many pounds of pure baking 4. When baking soda is heated , washing soda ( Na2CO3 ) is formed according to the following equation : 2 NaHCO3 = Na2CO3 + H2O + CO2 This ...
... powder . soda should be used ? tartar 90 per cent pure are to be How many pounds of pure baking 4. When baking soda is heated , washing soda ( Na2CO3 ) is formed according to the following equation : 2 NaHCO3 = Na2CO3 + H2O + CO2 This ...
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Συχνά εμφανιζόμενοι όροι και φράσεις
100-Calorie portion acetic acid action alcohol alkali aluminium ammonia ammonium Apparatus atoms bases beaker bisulphite bleaching boiling burning calcium Calories carbohydrates carbon dioxide carbon monoxide cellulose cent per cent CHAPTER chemical change chemistry coal color combustion compounds constituents contain copper cotton crystals dilute dish dissolved dyes elements esters ethyl Experiment Expt ferric fibers filter flame formula fuel value gases glass glucose glycerol grams H₂O hydrochloric acid hydrogen hydrolysis inch insoluble iron limewater liquid liter litmus paper magnesium Materials metal mixture molecules nitrate nitrogen odor ounces oxide oxygen phosphorus piece potassium potassium hydroxide pound powder precipitate Protein Fat Carbo proteins radicle reaction reagent residue salts silk soap soda sodium bisulphite sodium carbonate sodium chloride sodium hydroxide solid soluble starch substances sugar sulphate sulphuric acid temperature test tube tion vegetable washing weight wood wool yield zinc
Δημοφιλή αποσπάσματα
Σελίδα 191 - In the dietary studies made in connection with the nutrition investigations of the Office of Experiment Stations of the United States Department of Agriculture...
Σελίδα 294 - Measures of Length 10 millimeters (mm) =1 centimeter cm 10 centimeters =1 decimeter dm 10 decimeters =1 meter m 10 meters =1 dekameter Dm 10 dekameters =1 hektometer Hm 10 hektometers =1 kilometer Km...
Σελίδα 295 - Measures of Weight 10 milligrams (mg) =1 centigram eg 10 centigrams =1 decigram dg 10 decigrams =1 gram g 10 grams =1 dekagram Dg 10 dekagrams =1 hektogram Hg 10 hektograms =1 kilogram Kg...
Σελίδα 26 - Kelvin has shown that if a drop of water were magnified to the size of the earth the molecules of water would be of a size intermediate between that of a cricket ball and of a marble.