Exercises in Chemistry: Systematically Arranged to Accompany the Second Revised Edition of "An Elementary Study of Chemistry"Ginn, 1919 - 147 σελίδες |
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Σελίδα vi
... Flame . 53. The Sugars 76 78 56. The Preparation of a Simple Ester 57. Phosphorus and its Compounds 54. A Study of Starch 55. The Preparation and Properties of Common Alcohol 58. Arsenic and Some of its Compounds . 59. A Study of Some ...
... Flame . 53. The Sugars 76 78 56. The Preparation of a Simple Ester 57. Phosphorus and its Compounds 54. A Study of Starch 55. The Preparation and Properties of Common Alcohol 58. Arsenic and Some of its Compounds . 59. A Study of Some ...
Σελίδα 2
... The supply should be adjusted so as to give a flame about 10 cm . high . The gas flowing through the tube mixes with the air drawn in .. through the openings in the lower part of the tube 2 The Bunsen Burner; Manipulation of Glass Tubing.
... The supply should be adjusted so as to give a flame about 10 cm . high . The gas flowing through the tube mixes with the air drawn in .. through the openings in the lower part of the tube 2 The Bunsen Burner; Manipulation of Glass Tubing.
Σελίδα 3
... flame . If the band is adjusted so as to close the openings , the flame becomes luminous . Always use the nonluminous flame unless directed otherwise , B Hold a small wooden splint horizontally in the base of the Bunsen flame for two or ...
... flame . If the band is adjusted so as to close the openings , the flame becomes luminous . Always use the nonluminous flame unless directed otherwise , B Hold a small wooden splint horizontally in the base of the Bunsen flame for two or ...
Σελίδα 4
... flame . To bend the glass tub- ing , first heat it at the point where you wish to bend it , in the lumi- nous Bunsen flame spread out by means of the so- called " wing - top " burner FIG . 4 ( Fig . 4 ) . Hold the tube lengthwise in the ...
... flame . To bend the glass tub- ing , first heat it at the point where you wish to bend it , in the lumi- nous Bunsen flame spread out by means of the so- called " wing - top " burner FIG . 4 ( Fig . 4 ) . Hold the tube lengthwise in the ...
Σελίδα 5
... flame . Place the finished rods in the desk for future use . * d . To make a wash bottle . The student often will find a wash bottle useful in laboratory work . It may be readily made as represented in Fig . 7. A 500 cc . flask is used ...
... flame . Place the finished rods in the desk for future use . * d . To make a wash bottle . The student often will find a wash bottle useful in laboratory work . It may be readily made as represented in Fig . 7. A 500 cc . flask is used ...
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Συχνά εμφανιζόμενοι όροι και φράσεις
acetate alcohol ammonium hydroxide apparatus shown barium chloride beaker boiling bromide Bunsen flame calcium chloride carbon dioxide charcoal common salt compounds cool copper oxide copper sulfate cork crystals dish dissolved distilled water evaporate evaporating-dish EXERCISE experiment filter paper filtrate flask formed funnel tube glass plate glass rod glass tube hard-glass test tube hydrochloric acid insert iron laboratory limewater liquid litmus paper manganese dioxide Materials mixture mouth nitric acid Note the color Note the results odor phosphorus Place porcelain crucible potassium chlorate powdered precipitate PREPARATION AND PROPERTIES preparation of oxygen reaction red litmus paper remove residue ring stand rubber tubing screw clamp shake shown in Fig silver nitrate small beaker sodium carbonate sodium hydroxide sodium hydroxide solution solid soluble solution R. S. stand and burner starch stirring-rod stopper strips sulfuric acid temperature test tube volume watch glass weight wide-mouthed bottle wire wooden splint zinc
Δημοφιλή αποσπάσματα
Σελίδα 136 - 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 33 - Put one fourth of a test tube full of bone black into a small flask and pour over it about 50 cc. of water, to which has been added a few drops of a solution of litmus or of indigo.
Σελίδα 135 - 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 134 - Aluminium Antimony Arsenic Barium Bismuth Boron Bromine Cadmium Calcium Carbon Chlorine Chromium Cobalt Copper Fluorine Gold Hydrogen Iodine Iron Lead Lithium Magnesium Manganese Mercury Nickel Nitrogen Oxygen Phosphorus Platinum Potassium Silicon Silver Sodium Strontium Sulphur Tin Zinc Sym.
Σελίδα 83 - Phosphorous acid. Pour into a test tube about 0.5 cc. of phosphorus trichloride (hood) and add a little water, a drop at a time. What gas is evolved (R) ? Finally, add about 5 cc. of water, pour the liquid into an evaporatingdish, and evaporate to a sirupy mass. Dilute this with a little water, transfer the solution to a test tube, and add a few drops of a solution of silver nitrate. Boil the resulting mixture. A black precipitate forms. Explain.