Elementary Household Chemistry: An Introductory Textbook for Students of Home EconomicsMacmillan, 1914 - 307 σελίδες |
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Σελίδα 5
... grams . " " FIG . 6. Glass tube closed at one end . The " dextrose " ) , Rub Dissolve 2.5 grams glucose in 20 cc . water . FIG . 9.1 Glass loop 4 for limewater films . This can be made from a piece of small ( 2 to millimeter ) glass ...
... grams . " " FIG . 6. Glass tube closed at one end . The " dextrose " ) , Rub Dissolve 2.5 grams glucose in 20 cc . water . FIG . 9.1 Glass loop 4 for limewater films . This can be made from a piece of small ( 2 to millimeter ) glass ...
Σελίδα 12
... gram ) in a test tube . Note what escapes from the tube and what is left in it . Test the escaping gas with blue lit- mus paper . How many substances were put into the tube ? Were new sub- stances formed ? How many were detected ...
... gram ) in a test tube . Note what escapes from the tube and what is left in it . Test the escaping gas with blue lit- mus paper . How many substances were put into the tube ? Were new sub- stances formed ? How many were detected ...
Σελίδα 13
... . Experiment 17. * In a hard - glass test tube fitted with a cork and bent delivery tube and supported in a clamp on a ring stand heat a piece of marble weighing from 2 to 5 grams . A large DECOMPOSITION AND COMBINATION 13.
... . Experiment 17. * In a hard - glass test tube fitted with a cork and bent delivery tube and supported in a clamp on a ring stand heat a piece of marble weighing from 2 to 5 grams . A large DECOMPOSITION AND COMBINATION 13.
Σελίδα 14
... grams . A large Bunsen or a Teclu or Meker burner should be used . Immerse the lower end of the delivery tube in limewater , contained in a small test tube . Con- tinue to heat for several minutes and note the continued slow evolution ...
... grams . A large Bunsen or a Teclu or Meker burner should be used . Immerse the lower end of the delivery tube in limewater , contained in a small test tube . Con- tinue to heat for several minutes and note the continued slow evolution ...
Σελίδα 22
... acid 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.
... acid 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.
Άλλες εκδόσεις - Προβολή όλων
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.