A Course of Practical Chemistry Arranged for the Use of Medical StudentsHenry C. Lea, 1869 - 261 páginas |
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Página 22
... contain a composite metal , or rather metalloid , in place of the hydrogen of the acid . Thus by asso- ciating with each atom of ammonia in the salt an atom of hydrogen from the acid , each such atom of ammonia NH , becomes converted ...
... contain a composite metal , or rather metalloid , in place of the hydrogen of the acid . Thus by asso- ciating with each atom of ammonia in the salt an atom of hydrogen from the acid , each such atom of ammonia NH , becomes converted ...
Página 30
... contain an excess of cold Fig . 5 . air from the mouth ; while surrounding it will be seen a some- what thick layer of clear blue . This is the cone of perfect com- bustion , the pointed extremity of which constitutes the hottest part ...
... contain an excess of cold Fig . 5 . air from the mouth ; while surrounding it will be seen a some- what thick layer of clear blue . This is the cone of perfect com- bustion , the pointed extremity of which constitutes the hottest part ...
Página 48
... containing liquid , to be heated by means of a sand - bath , they should not be depressed into , but just rest on , the top of the hot sand . Test tubes may be readily heated in the flame of a spirit lamp or gauze - burner . They should ...
... containing liquid , to be heated by means of a sand - bath , they should not be depressed into , but just rest on , the top of the hot sand . Test tubes may be readily heated in the flame of a spirit lamp or gauze - burner . They should ...
Página 63
... containing crucible on a piece of metal , for in- stance , otherwise an ascending current of heated air will be set up , which will diminish its apparent weight appreciably . Hygrometric substances must be weighed in covered crucibles ...
... containing crucible on a piece of metal , for in- stance , otherwise an ascending current of heated air will be set up , which will diminish its apparent weight appreciably . Hygrometric substances must be weighed in covered crucibles ...
Página 64
... contain in reality 499.7 grains of water , and say 459.8 grains of proof spirit , then the sp . gr . of the spirit will be 920 . 459800 499.7 Specific gravity flasks or bottles are made of various shapes , one of the most convenient ...
... contain in reality 499.7 grains of water , and say 459.8 grains of proof spirit , then the sp . gr . of the spirit will be 920 . 459800 499.7 Specific gravity flasks or bottles are made of various shapes , one of the most convenient ...
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Términos y frases comunes
acetic acid acid solution acidified acidulated added addition albumen alkaline ammonia anhydride antimony aqueous arsenic arsenic acid barium bead blowpipe blowpipe flame boiling brown calcium calculi carbonate of sodium caustic charcoal chloric acid chloride cipitate cobalt color colorless compounds containing copper crystalline crystals deposit dilute dissolved drop edition effervescence evaporated to dryness examined extra cloth ferrocyanide filter filtrate flask glass globules heated hydrate hydro hydrochloric acid hydrogen ignition insoluble iodide large 8vo lead liquid magnesium manganese mercury metallic mixture moistened neutral nitrate nitrate of silver nitric acid opaque oxalic acid oxide peroxide phosphate piece potassium powder presence produced quantity readily soluble reagent residue royal 12mo salts shown in Fig solid solu soluble soluble in water stain strontium strychnia sublimate substance sulphate sulphide of ammonium sulphuretted hydrogen sulphuric acid sulphydric tartaric acid tartrate tion uric acid urine volatile washed watch-glass white precipitate zinc