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 1
... Length . By means of the scale ( see Appendix ) , measure the length ( in centimeters ) of various pieces of apparatus included in your outfit , as a test tube , file , and blowpipe . What is the diameter of your filter paper ? Finally ...
... Length . By means of the scale ( see Appendix ) , measure the length ( in centimeters ) of various pieces of apparatus included in your outfit , as a test tube , file , and blowpipe . What is the diameter of your filter paper ? Finally ...
Σελίδα 2
... length ; glass rod , 25 cm . in length , a . The Bunsen burner . The Bunsen burner is a form of apparatus used for producing heat and is commonly employed in the laboratory . It consists of the tube A ( Fig . 1 ) , screwed into the base ...
... length ; glass rod , 25 cm . in length , a . The Bunsen burner . The Bunsen burner is a form of apparatus used for producing heat and is commonly employed in the laboratory . It consists of the tube A ( Fig . 1 ) , screwed into the base ...
Σελίδα 3
... lengths of soft - glass tubing cut a piece about 15 cm . in length . To do this , place the tubing on the desk and draw the edge of a triangular file across the point at which you wish to cut the glass . After the glass has been ...
... lengths of soft - glass tubing cut a piece about 15 cm . in length . To do this , place the tubing on the desk and draw the edge of a triangular file across the point at which you wish to cut the glass . After the glass has been ...
Σελίδα 5
... length . Cut the rods to the proper length and round the ends by heating in the Bunsen 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 ...
... length . Cut the rods to the proper length and round the ends by heating in the Bunsen 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 ...
Σελίδα 11
... length ; wooden splint ; 2 or 3 g . of sugar ; 1g . common salt ; piece of granulated zinc ; sulfuric acid ; 2 g . sulfur ; 2 g . powdered iron . a . Chemical action . Hold a piece of iron wire in the Bunsen flame for a few seconds . Is ...
... length ; wooden splint ; 2 or 3 g . of sugar ; 1g . common salt ; piece of granulated zinc ; sulfuric acid ; 2 g . sulfur ; 2 g . powdered iron . a . Chemical action . Hold a piece of iron wire in the Bunsen flame for a few seconds . Is ...
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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.