Laboratory Manual: Arranged to Accompany "A Course in General Chemistry"Ginn, 1915 - 262 σελίδες |
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Σελίδα
... laboratory observations , or more elaborate reports may be written from the recorded notes if the instructor so desires . OHIO STATE UNIVERSITY COLUMBUS , OHIO CONTENTS CHAPTER I. MANIPULATION AND FUNDAMENTAL PRINCIPLES II . OXYGEN [ iv ]
... laboratory observations , or more elaborate reports may be written from the recorded notes if the instructor so desires . OHIO STATE UNIVERSITY COLUMBUS , OHIO CONTENTS CHAPTER I. MANIPULATION AND FUNDAMENTAL PRINCIPLES II . OXYGEN [ iv ]
Σελίδα
... OXYGEN AND HYDROGEN III . WATER AND HYDROGEN PEROXIDE . IV . THE STATES OF MATTER V. THE LAWS OF CHEMICAL COMBINATION VI . NITROGEN AND THE ATMOSPHERE VII . SOLUTIONS AND IONIZATION VIII . ACIDS ; BASES ; SALTS ; NEUTRALIZATION . IX ...
... OXYGEN AND HYDROGEN III . WATER AND HYDROGEN PEROXIDE . IV . THE STATES OF MATTER V. THE LAWS OF CHEMICAL COMBINATION VI . NITROGEN AND THE ATMOSPHERE VII . SOLUTIONS AND IONIZATION VIII . ACIDS ; BASES ; SALTS ; NEUTRALIZATION . IX ...
Σελίδα 10
... . Of what is the sub- stance composed ? When elements combine chemically , do they retain their original properties ? What is the product of such a combination called ? CHAPTER II OXYGEN AND HYDROGEN 12. Collection of gases . [ 10 ]
... . Of what is the sub- stance composed ? When elements combine chemically , do they retain their original properties ? What is the product of such a combination called ? CHAPTER II OXYGEN AND HYDROGEN 12. Collection of gases . [ 10 ]
Σελίδα 11
... OXYGEN AND HYDROGEN 12. Collection of gases . Fill a wide - mouthed bottle ( 250 - cc . ) with water . Cover its mouth with a glass plate , being careful to exclude all air bubbles . Hold the plate firmly in place , invert the bottle ...
... OXYGEN AND HYDROGEN 12. Collection of gases . Fill a wide - mouthed bottle ( 250 - cc . ) with water . Cover its mouth with a glass plate , being careful to exclude all air bubbles . Hold the plate firmly in place , invert the bottle ...
Σελίδα 12
... oxygen ? 14. Catalysis . Place about 1 g . of potassium chlorate in a test tube and carefully heat it in a small Bunsen flame until it has just melted . Can you see any gas being given off ? Continue the heating until you can plainly ...
... oxygen ? 14. Catalysis . Place about 1 g . of potassium chlorate in a test tube and carefully heat it in a small Bunsen flame until it has just melted . Can you see any gas being given off ? Continue the heating until you can plainly ...
Άλλες εκδόσεις - Προβολή όλων
Laboratory Manual: Arranged to Accompany a Course in General Chemistry William Edwards Henderson Wi McPherson Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2019 |
Συχνά εμφανιζόμενοι όροι και φράσεις
acetate add a little aluminium ammonia ammonium hydroxide ammonium sulfide antimony barium beaker boiling bottle bromide Bunsen flame burner calcium charcoal compounds cool copper sulfate cork crucible crystals delivery tube dish Dissolve distilled drops equal volume evaporate evaporating-dish evolved ferric filter paper filtrate flask gentle heat gently glass rod glass tube hood hydrochloric acid hydrogen chloride hydrogen sulfide insert iodide iron laboratory limewater liquid liter litmus paper magnesium manganese dioxide mercuric metal mixture nitric acid nitrogen Note the color note the result obtained oxide oxygen portion potassium chlorate powdered precipitate form Prepare reaction reagents Repeat the experiment residue rubber tube screw clamp shake shown in Fig side shelf silver nitrate small piece sodium carbonate sodium hydroxide sodium sulfate solu soluble solution of ammonium solution of sodium stopper sulfuric acid temperature test tube tion volume of hydrogen watch glass weight wire zinc
Δημοφιλή αποσπάσματα
Σελίδα 80 - Prove the presence of carbon dioxide in the air exhaled from the lungs by blowing through limewater (R). Hold a wide-mouthed bottle above a small flame so that the hot gaseous products of combustion will collect in it ; then quickly add a few cubic centimeters of limewater, cover the mouth of the bottle with the hand, and shake up the contents. What do the results prove? What are the sources of carbon dioxide in the air ? Does the percentage in the air increase ? Why ? e.
Σελίδα 70 - ... having drank a Flask of Florence at a Tavern, and thrown the empty Flask upon the Fire, he call'd for a Bason of Water to wash his Hands, and perceiving that the little Wine left in the Flask had filled up the Flask with Steam, he took the Flask by the Neck and plunged the Mouth of it under the Surface of the Water in the Bason, and the Water of the Bason was immediately driven up into the Flask by the Pressure of the Air.
Σελίδα 94 - Then add the precipitate together with about five times its weight of a mixture of equal parts of sodium carbonate and sulphur, and fuse over a Bunsen burner.
Σελίδα 60 - ... powdered brimstone in a test tube. Cover the mouth of the tube with the thumb and shake the contents gently until the sulfur is dissolved, adding more carbon disulfide if necessary. Pour the clear solution into a small beaker, cover it loosely with a filter paper, and set it aside in the hood.
Σελίδα 83 - Collect another test tube full of the gas, quickly pour into it about 1 cc. of bromine water, close the mouth of the tube with the thumb, and shake it vigorously.
Σελίδα 95 - 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.