Instruction in chemical analysis, quantitative [tr. and] ed. by J.L. Bullock |
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Página 11
... gramme weight is then placed in one of the scales . A good and prac- tically useful balance must turn distinctly with ... grammes each , and , if necessary , the balance is again adjusted ( by the addition of small weights , & c . ) The ...
... gramme weight is then placed in one of the scales . A good and prac- tically useful balance must turn distinctly with ... grammes each , and , if necessary , the balance is again adjusted ( by the addition of small weights , & c . ) The ...
Página 12
... gramme is the best standard for calculation . A set of weights ranging from fifty grammes to one milligramme may be con- sidered sufficient for all practical purposes . With regard to the set of weights , it is generally a matter of ...
... gramme is the best standard for calculation . A set of weights ranging from fifty grammes to one milligramme may be con- sidered sufficient for all practical purposes . With regard to the set of weights , it is generally a matter of ...
Página 13
... gramme downwards , made of platinum foil , using brass weights for all the higher denominations . Brass weights must be carefully shielded from the contact of acid or other vapors , or their correctness will be impaired ; nor should ...
... gramme downwards , made of platinum foil , using brass weights for all the higher denominations . Brass weights must be carefully shielded from the contact of acid or other vapors , or their correctness will be impaired ; nor should ...
Página 15
... grammes minus 10-40 grammes . § 10 . The following rules will be found useful in performing the process of weighing : - 1. The safest and most expeditious way of ascertaining the exact weight of a substance , is to avoid trying weights ...
... grammes minus 10-40 grammes . § 10 . The following rules will be found useful in performing the process of weighing : - 1. The safest and most expeditious way of ascertaining the exact weight of a substance , is to avoid trying weights ...
Página 17
... grammes of platinum and 10 grammes of glass , by wires of equal weight , the balance will assume a state of equilibrium ; but if we subse- quently immerse the platinum and glass completely in water , this equilibrium will at once cease ...
... grammes of platinum and 10 grammes of glass , by wires of equal weight , the balance will assume a state of equilibrium ; but if we subse- quently immerse the platinum and glass completely in water , this equilibrium will at once cease ...
Palavras e frases frequentes
accurate results acid solution alkaline alumina ammonia analysis antimony arsenic acid baryta beaker bichloride of platinum binoxide boiling carbonate of soda carbonic acid Chem chloride of ammonium chloride of potassium chloride of sodium chromate chromic acid cipitate color compounds contains converted cubic centimetres decantation decomposed decomposition Determination dilute dish dissolves dried evaporation excess filter filtrate flask fluid fused glass grammes hydrated hydrochloric acid ignition insoluble in water iodide iodine latter lime magnesia manganese mercury metallic method mixed mixture nickel nitrate nitric acid operation oxalic acid oxide oxide of lead permanganate of potassa phosphate phosphoric acid platinum and chloride porcelain portion prakt precipitate present pure quantity readily red heat residue salt separation sesquioxide of chromium sesquioxide of iron silicic acid soluble solution of chloride strontia substance sulphate sulphide of ammonium sulphuretted hydrogen sulphuric acid teroxide tube volatile volumetrical wash weighed zinc
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